• Back plunger type dial gauges are suitable for mounting onto leveling machine tool tables or inspection jigs, and for use in small spaces where the graduations of standard dial gauges are difficult to see.
• Models 2960T, 2961T, 2990T-10 and 2991T-10, which use Mitutoyo’s proprietary shock-proofing mechanism, have excellent durability and shock resistance.
• Model 2990T-10 provides 0.001mm graduation.

DIMENSIONS

* The shoulder on a contact point (standard accessory) for 2960T and 2961T acts as a stop to prevent spindle overrun that may otherwise damage the indicator. For this reason, if you need to install an optional contact point with an outside diameter smaller than 7mm, use a washer (with outside diameter of at least 7mm, inside diameter of 3mm, and thickness of approx. 0.5mm) placed between the contact point and the spindle.

Metric

Order No.	Graduation	Range (range/rev)	Accuracy				Repeatbility	Dial reading	Measuring force
			Overall	Retrace	1/10 Rev	1 Rev
2960T	0.01mm	1mm (1.27mm)	14µm	4µm	8µm	—	3µm	50-0-50	1.4N or less
2990T-10	0.001mm	0.1mm (0.14mm)	5µm	2µm	2.5µm	—	1µm	50-0-50	1.5N or less

* Completed products inspection is performed in the vertical position (contact point downward) and the stated accuracy is guaranteed.

Inch

Order No.	Graduation	Range (range/rev)	Accuracy		Repeatbility	Dial reading	Measuring force
			First 1 Rev / 2.5 Rev / 10 Rev	Retrace
2961T	.0005”	.04” / .05”	±.0005” / — / —	.00016”	±.0001”	20-0-20	1.4N or less
2991T-10	.0001”	.008” / .01”	±.0002” / — / —	.0001”	±.00005”	4-0-4	1.5N or less

* Completed products inspection is performed in the vertical position (contact point downward) and the stated accuracy is guaranteed.

Metric

Inch

Holding bar (optional)

Order No.	øD	L
21AAA166	ø6mm	42mm
136567	ø6mm	81mm
124625	ø6.35mm	81mm
21AAA167	ø6.35mm	42mm
21AAA168	ø8mm	42mm
136568	ø8mm	81mm

* øD and L: detail shown in drawing below.

Peak hold type Special dial Indicator gauge

• A mechanism holds the pointer and the spindle at the position of maximum depression and hence displays the maximum value.
  * Clearance of peak hold: push the nut in the direction of the arrow indicated in the dimensional drawing below.

DIMENSIONS

SPECIFICATIONS
Metric

Order No.		Graduation	Range (range/rev)	Accuracy				Repeat- ability	Dial reading	Measuring force
w/ lug	Flat-back			Overall	Retrace	1/10 Rev	1 Rev
2046S-80	2046SB-80	0.01mm	10mm (1mm)	15µm	—	5µm	10µm	—	±0-100	5.0N or less

* Completed products inspection is performed in the vertical position (contact point downward) and the stated accuracy is guaranteed.

FEATURES
Metric

Adjustable hand dial indicators

• The hand position can be adjusted independently of the position of the spindle by rotating the top knob.

DIMENSIONS

* Contact points, other than dedicated types, cannot be installed.
* The shoulder on a contact point (standard accessory) acts as a stop to prevent spindle overrun that may otherwise damage the indicator. For this reason, if you need to install an optional contact point with an outside diameter smaller than 7mm, use a washer (with outside diameter of at least 7mm, inside diameter of 3mm, and thickness of approx. 0.5mm) placed between the contact point and the spindle.

SPECIFICATIONS
Metric

Order No.		Graduation	Range (range/rev)	Accuracy				Repeat- ability	Dial reading	Measuring force
w/ lug	Flat-back			Overall	Retrace	1/10 Rev	1 Rev
2048S-10	2048SB-10	0.01mm	10mm (1mm)	15µm	3µm	5µm	10µm	3µm	±0-100	1.4N or less

* Completed products inspection is performed in the vertical position (contact point downward) and the stated accuracy is guaranteed.

Inch

Order No.		Graduation	Range (range/rev)	Accuracy		Repeat- ability	Dial reading	Measuring force
w/ lug	Flat-back			First 1 Rev / 2.5 Rev / 10 Rev	Retrace
2915S-10	2915SB-10	.001”	.5” (.1”)	±.001” / ±.001” / ±.001	.0002	±.0002	±0-100	1.8N or less
2918S-10	2918SB-10	.001”	.5” (.1”)	±.001” / ±.001” / ±.001	.0002	±.0002	0-50-0	1.8N or less

* Completed products inspection is performed in the vertical position (contact point downward) and the stated accuracy is guaranteed.

FEATURES

Metric

Inch

• Dial indicators with a large-diameter dial face for easy reading.
• Models with longer measuring ranges are also available.
• All types are supplied with limit markers and a bezel clamp as standard.
• Both the stem and the spindle are made of high-strength quench-hardened stainless steel suitable for heavy-duty use.
• The bezel clamp and lifting lever (optional)*1 can be attached to either the right or left side. These parts can be easily installed and removed without tools.
  *1: Can be attached only to Code No. 3046S, 3047S, 3050S, 3109S-10 and 4046S.

DIMENSIONS

Order No.	A	B	C	D	E	F	G	H	I
3046S	61.2	75.5	78	17.7	21	15.9	20.6	71	9
3047S	61.2	75.5	78	17.7	21	15.9	20.6	71	9
3050S	52.6	94	78	17.7	21	25.9	29.1	71	9
3052S-19*	72.9	104.3	78	17.7	21	25.9	39.4	71	9
3058S-19*	81.9	142.3	78	17.7	21	43.9	59.4	71	9
3060S-19*	120.9	202.3	78	17.7	21	73.9	89.4	71	9
3062S-19*	141.9	243.3	78	17.7	21	94.9	109.4	71	9
3109S-10	61.2	79	78	17.7	21	25.9	14.1	71	9
4046S	61.2	84	92	21.5	21	18.9	19.1	71	9

Note 1: Dimensions of the inch (ANSI/AGD Type) dial indicator partly differ from those of the metric (ISO/JIS Type) indicator.
Note 2: Inch (ANSI/AGD Type) dial indicators are provided with a stem of 3/8″ dia. and #4-48UNF thread mount for the contact point.
* The shoulder on a contact point (standard accessory) acts as a stop to prevent spindle overrun that may otherwise damage the indicator. For this reason, if you need to install an optional contact point with an outside diameter smaller than 7mm, use a washer (with outside diameter of at least 7mm, inside diameter of 3mm, and thickness of approx. 0.5mm) placed between the contact point and the spindle.

Order No.	A	B	C	D	E	F	G	H	I
3414S	52.6	73.4	78	17.7	19	12.6	21.8	71	9
3415S	52.6	73.4	78	17.7	19	12.6	21.8	71	9
3416S	52.6	86.1	78	17.7	19	12.6	34.5	71	9
3417S	52.6	86.1	78	17.7	19	12.6	34.5	71	9
3424S-19*	84	149.3	78	17.7	19	50.6	59.7	71	9
3426S-19*	123	198.1	78	17.7	19	73.9	85.2	71	9
3428S-19*	144	244.5	78	17.7	19	94.9	110.6	71	9
3803S-10	61.2	59.7	78	17.7	19	12.6	8.1	71	9
3802S-10	61.2	59.7	78	17.7	19	12.6	8.1	71	9
3052S-11*	72.9	102.4	78	17.7	19	25.9	37.5	71	9
3058S-11*	81.9	147.1	78	17.7	19	50.6	57.5	71	9
4887S-19*	123	198.1	92	21.5	19	66.9	85.2	71	9

SPECIFICATIONS
Metric

Order No.		Graduation	Range (range/rev)	Accuracy				Repeat- ability	Dial reading	Measuring force
w/ lug	Flat-back			Overall	Retrace	1/10 Rev	1 Rev
3046S	3046SB	0.01mm	10mm (1mm)	15µm	3µm	5µm	10µm	3µm	±0-100	1.4N or less
3047S	3047SB	0.01mm	10mm (1mm)	15µm	3µm	5µm	10µm	3µm	0-50-0	1.4N or less
3050S	3050SB	0.01mm	20mm (1mm)	20µm	5µm	8µm	15µm	4µm	±0-100	2.0N or less
3052S-19	3052SB-19	0.01mm	30mm (1mm)	25µm	7µm	10µm	15µm	5µm	±0-100	2.5N or less
3058S-19	3058SB-19	0.01mm	50mm (1mm)	30µm	8µm	10µm	15µm	5µm	±0-100	3.0N or less
3060S-19*	3060SB-19*	0.01mm	80mm (1mm)	45µm	9µm	12µm	20µm	5µm	±0-100	3.0N or less
3062S-19*	3062SB-19*	0.01mm	100mm (1mm)	50µm	9µm	12µm	20µm	5µm	±0-100	3.2N or less
3109S-10	3109SB-10	0.001mm	1mm (0.2mm)	5µm	2µm	2µm	4µm	0.5µm	0-100-0	1.5N or less
4046S	4046SB	0.01mm	10mm (1mm)	15µm	3µm	5µm	10µm	3µm	±0-100	1.4N or less

*1 Use in a vertical position (contact point downward) for the long stroke model.
*2 Completed products inspection is performed in the vertical position (contact point downward) and the stated accuracy is guaranteed.

Inch

Order No.		Graduation	Range (range/rev)	Accuracy		Repeat- ability	Dial reading	Measuring force
w/ lug	Flat-back			First 1 Rev / 2.5 Rev / 10 Rev	Retrace
3414S	3414SB	.001”	.5” (.1”)	±.001” / ±.001” / ±.001”	.0002”	±.0002”	±0-100	1.8N or less
3415S	3415SB	.001”	.5” (.1”)	±.001” / ±.001” / ±.001”	.0002”	±.0002”	0-50-0	1.8N or less
3416S	3416SB	.001”	1” (.1”)	±.001” / ±.001” / ±.002”	.0002”	±.0002”	±0-100	1.8N or less
3417S	3417SB	.001”	1” (.1”)	±.001” / ±.001” / ±.002”	.0002”	±.0002”	0-50-0	1.8N or less
3424S-19	3424SB-19	.001”	2” (.1”)	±.001” / ±.001” / ±.002” / ±.003” (20Rev)	.00033”	±.0002”	±0-100	3.0N or less
3426S-19*	3426SB-19*	.001”	3” (.1”)	±.001” / ±.001” / ±.002” / ±.003” (20Rev) / ±.005” (Over 20Rev)	.00033”	±.0002”	±0-100	3.0N or less
3428S-19*	3428SB-19*	.001”	4” (.1”)	±.001” / ±.001” / ±.002” / ±.003” (20Rev) / ±.005” (Over 20Rev)	.00033”	±.0002”	±0-100	3.2N or less
3802S-10	3802SB-10	.0001”	.025” (.01”)	±.0001” / ±.0001” / —	.0001”	±.00003”	0-10	2.0N or less
3803S-10	3803SB-10	.0001”	.025” (.01”)	±.0001” / ±.0001” / —	.0001”	±.00003”	0-5-0	2.0N or less
4887S-19*	4887SB-19*	.001”	3” (.1”)	±.001” / ±.001” / ±.002” / ±.003” (20Rev) / ±.005” (Over 20Rev)	.00033”	±.0002	±0-100	3.0N or less

*1 Use in a vertical position (contact point downward) for the long stroke model.
*2 Completed products inspection is performed in the vertical position (contact point downward) and the stated accuracy is guaranteed

FEATURES
Metric

Inch

• Mitutoyo’s unique shock-proof mechanism is incorporated, providing improved resistance to shock due to sudden spindle retraction caused by impact.
• This series has been developed to eliminate the possibility of reading errors due to miscounting multiple revolutions.
• The dead zone in red indicates “accuracy not guaranteed” .
• One revolution type Back plunger dial gages are also available. (Refer to pages F-49 to F-50 for details.)

SPECIFICATIONS
Metric

Order No.		Graduation	Range (range/rev)	Accuracy				Repeat- ability	Dial reading	Measuring force
w/ lug	Flat-back			Overall	Retrace	1/10 Rev	1 Rev
1929S	1929SB	0.01mm	1mm (1.4mm)	11µm	4µm	7µm	—	3µm	50-0-50	1.4N or less
1929S-62	1929SB-62	0.01mm	1mm (1.4mm)	11µm	4µm	7µm	—	3µm	50-0-50	1.4N or less
1900S-10	1900SB-10	0.001mm	0.1mm (0.14mm)	5µm	2µm	2.5µm	—	1µm	50-0-50	1.5N or less
1900S-72	1900SB-72	0.001mm	0.1mm (0.14mm)	5µm	2µm	2.5µm	—	1µm	50-0-50	1.5N or less

* Completed products inspection is performed in the vertical position (contact point downward) and the stated accuracy is guaranteed.

Inch

Order No.		Graduation	Range (range/rev)	Accuracy		Repeat- ability	Dial reading	Measuring force
w/ lug	Flat-back			First 1 Rev / 2.5 Rev / 10 Rev	Retrace
1909S-62	1909SB-62	.0005”	.04” (.056”)	±.0005” / — / —	.00016”	±.0001”	20-0-20	1.4N or less
1910S-72	1910SB-72	.0001”	.006” (.008”)	±.0001” / — / —	.0001”	±.00003”	3-0-3	1.5N or less

* Completed products inspection is performed in the vertical position (contact point downward) and the stated accuracy is guaranteed.

FEATURES
Metric

Inch

DIMENSIONS

Note 1: Dimensions of the inch (ANSI/AGD Type) dial indicator partly differ from those of the metric (ISO/JIS Type) indicator.
Note 2: Inch (ANSI/AGD Type) dial indicators are provided with a stem of 3/8″ dia. and #4-48UNF thread mount for the contact point

Order No.	A	B	C	D	E	F	G	H	I
1909S-62	32.5	41.7	40	14.5	19	12.8	8.9	38	6.6
1910S-72	32.5	40.8	40	14.5	19	12.8	8	38	6.6

Order No.	A	B	C	D	E	F	G	H	I
1929S	32.5	47.5	40	14.5	20	13.8	13.7	38	6.6
1929S-62	32.5	47.5	40	14.5	20	13.8	13.7	38	6.6
1900S-10	32.5	53.5	40	14.5	20	16.8	16.7	38	6.6
1900S-72	32.5	53.5	40	14.5	20	16.8	16.7	38	6.6

• Compact dial indicators with bezel diameters of ø40mm for restricted-space applications in gaging jigs.

SPECIFICATIONS
Metric

* Completed products inspection is performed in the vertical position (contact point downward) and the stated accuracy is guaranteed.

Inch

* Completed products inspection is performed in the vertical position (contact point downward) and the stated accuracy is guaranteed.

FEATURES
Metric

Inch

DIMENSIONS

Note 1: Dimensions of the inch (ANSI/AGD Type) dial indicator partly differ from those of the metric (ISO/JIS Type) indicator.
Note 2: Inch (ANSI/AGD Type) dial indicators are provided with a stem of 3/8″ dia. and #4-48UNF thread mount for the contact point

• Compact dial indicators with bezel diameters of ø31 or ø36mm for restricted-space applications in gaging jigs.

DIMENSIONS

Order No.	A	B	C	D	E	F	G	H	I
1911T-10	15.5	42	31	12.9	19.2	15	11.5	30	5.9
1913T-10	15.5	39.5	31	12.9	19.2	15	9	30	5.9
1003T	18	40.3	36	13	15	9.5	12.8	32	6
1921T-10	15.5	40	31	12.9	19.2	15	9.5	30	6.8
1923T-10	15.5	38.3	31	12.9	19.2	15	7.8	30	6.8
1925T-10	15.5	37.5	31	12.9	19.2	15	7	30	6.8

Notes
1) Limit hands, bezel clamps and lifting levers cannot be installed.
2) The shoulder on a contact point (standard accessory) acts as a stop to prevent spindle overrun that may otherwise damage the indicator. For this reason, if you need to install an optional contact point with an outside diameter smaller than 7mm, use a washer (with outside diameter of at least 7mm, inside diameter of 3mm, and thickness of approx. 0.5mm) placed between the contact point and the spindle.

SPECIFICATIONS
Metric

Order No.		Graduation	Range (range/rev)	Accuracy				Repeat- ability	Dial reading	Measuring force
w/ lug	Flat-back			Overall	Retrace	1/10 Rev	1 Rev
1911T-10	1911TB-10	0.01mm	2.5mm (1mm)	12µm	4µm	8µm	10µm	3µm	0-50-0	1.8N or less
1913T-10	1913TB-10	0.002mm	0.5mm (0.2mm)	6µm	2.5µm	2.5µm	5µm	1µm	0-100-0	1.8N or less
1003T	1003TB	0.01mm	4mm (1mm)	13µm	4µm	8µm	11µm	3µm	0-50-0	1.4N or less

* Completed products inspection is performed in the vertical position (contact point downward) and the stated accuracy is guaranteed.

Inch

Order No.		Graduation	Range (range/rev)	Accuracy		Repeat- ability	Dial reading	Measuring force
w/ lug	Flat-back			First 1 Rev / 2.5 Rev / 10 Rev	Retrace
1921T-10	1921TB-10	.001”	.1” (.04”)	±.001” / ±.001” / —	.0002”	±.0002”	0-20-0	1.8N or less
1923T-10	1923TB-10	.0005”	.05” (.02”)	±.0005” / ±.005” / —	.00016”	±.0001”	0-10-0	1.8N or less
1925T-10	1925TB-10	.0001”	.025” (.01”)	±.0002” / ±.0002” / —	.0001”	±.00003”	0-5-0	1.8N or less

* Completed products inspection is performed in the vertical position (contact point downward) and the stated accuracy is guaranteed.

• Long stroke dial indicators with a ø57mm outer frame. All the models are equipped with limit markers and a bezel clamp as standard.
• An O-ring is employed to ensure air-tightness between the outer frame and the crystal case to prevent water or oil penetration.
• Both the stem and the spindle are made of high-strength quench-hardened stainless steel suitable for heavy-duty use.
• A carbide contact point is employed.
• The grand gear is made of stainless steel with high resistance to wear and deformation.
• Application of a hard coating on the surface of the crystal makes the gauge highly scratch- and chemical-resistant.
• The bezel clamp and lifting lever* (optional) can be attached to either the right or left side. These parts can be easily installed and removed without any tools.
  * Not available for waterproof type

SPECIFICATIONS
Metric

Order No.		Graduation	Range (range/rev)	Accuracy				Repeat- ability	Dial reading	Measuring force
w/ lug	Flat-back			Overall	Retrace	1/10 Rev	1 Rev
2050S	2050SB	0.01mm	20mm (1mm)	20µm	5µm	8µm	15µm	4µm	±0-100	2.0N or less
2050S-60	2050SB-60	0.01mm	20mm (1mm)	20µm	5µm	8µm	15µm	4µm	±0-100	2.5N or less
2050S-19	2050SB-19	0.01mm	20mm (1mm)	20µm	5µm	8µm	15µm	4µm	±0-100	2.0N or less
2320S-10	2320SB-10	0.01mm	20mm (1mm)	20µm	5µm	8µm	15µm	4µm	±0-100	2.0N or less
2052S	2052SB	0.01mm	30mm (1mm)	25µm	7µm	10µm	15µm	5µm	±0-100	2.5N or less
2052S-19	2052SB-19	0.01mm	30mm (1mm)	25µm	7µm	10µm	15µm	5µm	±0-100	2.5N or less
2330S-10	2330SB-10	0.01mm	30mm (1mm)	25µm	7µm	10µm	15µm	5µm	±0-100	2.5N or less
2952S	2952SB	0.01mm	30mm (1mm)	25µm	7µm	10µm	15µm	5µm	100-0	2.5N or less

*1 2050S-60 and 2050SB-60 are waterproof types that use a rubber bellows to cover the spindle. Please note that the outer diameter of the bellows (ø9.5) is larger than that of the stem (ø8).
*2 Completed products inspection is performed in the vertical position (contact point downward) and the stated accuracy is guaranteed.

Inch

Order No.		Graduation	Range (range/rev)	Accuracy		Repeat- ability	Dial reading	Measuring force
w/ lug	Flat-back			First 1 Rev / 2.5 Rev / 10 Rev	Retrace
2416S	2416SB	.001”	1” (.1”)	±.001” / ±.001” / ±.002”	.0002”	±.0002”	±0-100	1.8N or less
2416S-06	2416SB-06	.001”	1” (.1”)	±.001” / ±.001” / ±.002”	.0002”	±.0002”	±0-100	1.8N or less
2416S-10	2416SB-10	.001”	1” (.1”)	±.001” / ±.001” / ±.002”	.0002”	±.0002”	±0-100	1.8N or less
2417S	2417SB	.001”	1” (.1”)	±.001” / ±.001” / ±.002”	.0002”	±.0002”	0-50-0	1.8N or less
2424S-19	2424SB-19	.001”	2” (.1”)	±.001” / ±.001” / ±.002” / ±.003” (First 20Rev)	.00033”	±.0002”	±0-100	2.5N or less
2776S	2776SB	.0005”	1” (.05”)	±.0005” / ±.0005” / ±.0015” / ±.002” (First 20Rev)	.0002”	±.0001”	±0-50	2.5N or less
2904S	2904SB	.001”	1” (.1”)	±.001” / ±.001” / ±.002”	.0002”	±.0002”	100-0	1.8N or less

* Completed products inspection is performed in the vertical position (contact point downward) and the stated accuracy is guaranteed.

FEATURES
Metric

Inch

DIMENSIONS

Order No.	A	B	C	D	E	F	G	H	I
2050S	38.8	75.2	57	17.7	20	16.9	29.8	52	7.6
2050S-60	59.8	87.2	57	17.7	20	12.3	46.4	52	7.6
2050S-19	38.8	75.2	57	17.7	20	16.9	29.8	52	7.6
2320S-10	38.8	75.2	57	17.7	20	16.9	29.8	52	7.6
2052S	38.8	88.7	57	17.7	20	16.9	43.3	52	7.6
2052S-19	38.8	88.7	57	17.7	20	16.9	43.3	52	7.6
2330S-10	38.8	88.7	57	17.7	20	16.9	43.3	52	7.6
2952S	38.8	88.7	57	17.7	20	16.9	43.3	52	7.6

Order No.	A	B	C	D	E	F	G	H	I
2416S	38.9	76.8	57	17.7	19	13.6	34.7	52	7.6
2416S-06	38.9	76.8	57	17.7	19	13.6	34.7	52	7.6
2416S-10	38.9	76.8	57	17.7	19	13.6	34.7	52	7.6
2417S	38.9	76.8	57	17.7	19	13.6	34.7	52	7.6
2424S-19	118	142.5	57	17.7	20.9	54.3	59.7	52	9.5
2776S	38.9	76.8	57	17.7	19	13.6	34.7	52	7.6
2904S	38.9	76.8	57	17.7	19	13.6	34.7	52	7.6

• Excellent water- and drip-proof characteristics (IP43).
• Smooth movement thanks to the improved design of bush and stem.
• Application of a hard coating on the surface of the crystal makes the gage scratch- and oil-resistant.
• Lightweight type (70g).

DIMENSIONS

* When installing an optional back (refer to page F-55 for details) please separately prepare 4 fixing screws
(Order No. 546666: Self-tapping screw only for resin).
Do not apply a tightening torque of more than 20N-cm in order to avoid stripping the screw threads.

* An optional lifting lever, release or outer frame clamp cannot be installed

Order No.	A	B	C	D	F	G	H	I
2971TB	43.2	65.6	57	16.5	21	16.8	55	7.6
2972TB	43.2	66	57	16.5	21	17.2	55	7.6
2973TB	43.2	66.3	57	16.5	21	17.5	55	7.6
2976TB	43.2	64.7	57	16.5	20.3	15.9	55	7.6
2977TB	43.2	65	57	16.5	20.3	16.2	55	7.6
2978TB	43.2	65.3	57	16.5	20.3	16.5	55	7.6

SPECIFICATIONS
Metric

Order No.		Graduation	Range (range/rev)	Accuracy				Repeat- ability	Dial reading	Measuring force
w/ lug	Flat-back			Overall	Retrace	1/10 Rev	1 Rev
—	2971TB	0.01mm	0.5mm (0.7mm)	8µm	3µm	5µm	—	3µm	25-0-25	1.4N or less
—	2972TB	0.01mm	1mm (1.4mm)	8µm	3µm	5µm	—	3µm	50-0-50	1.4N or less
—	2973TB	0.02mm	1.6mm (2mm)	16µm	6µm	8µm	—	5µm	80-0-80	1.4N or less

* Completed products inspection is performed in the vertical position (contact point downward) and the stated accuracy is guaranteed.

Inch

Order No.		Graduation	Range (range/rev)	Accuracy		Repeat- ability	Dial reading	Measuring force
w/ lug	Flat-back			First 1 Rev / 2.5 Rev / 10 Rev	Retrace
—	2976TB	.0005”	.02” (.028”)	±.0005″/–/–	.00016″	±.0001”	10-0-10	1.4N or less
—	2977TB	.0005”	.04” (.055”)	±.0005″/–/–	.00016″	±.0001″	20-0-20	1.4N or less
—	2978TB	.001”	.06” (.079”)	±.001″/–/–	.0002”	±.0002”	30-0-30	1.4N or less

* Completed products inspection is performed in the vertical position (contact point downward) and the stated accuracy is guaranteed.

FEATURES
Metric

Inch

• Mitutoyo’s unique shock-proof mechanism is incorporated, providing improved resistance to shock due to sudden spindle retraction caused by impact.
• This series has been developed to eliminate the possibility of reading errors due to miscounting multiple revolutions.
• The dead zone in red indicates “accuracy not guaranteed”.
• One revolution type Back plunger dial gages are also available. (Refer to pages F-44 to F-45 for details.)

DIMENSIONS

Note 1: Dimensions of the inch (ANSI/AGD Type) dial indicator partly differ from those of the metric (ISO/JIS Type) indicator.
Note 2: Inch (ANSI/AGD Type) dial indicators are provided with a stem of 3/8″ dia. and #4- 48UNF thread mount for the contact point.

Order No.	A	B	C	D	E	F	G	H	I
2929S-60	48.8	70	57	17.7	20	12.3	29.2	52	7.6
2900S-70	48.8	67	57	17.7	20	12.3	26.2	52	7.6

Order No.	A	B	C	D	E	F	G	H	I
2910S-72	48.8	51.2	57	17.7	19	13.6	9.1	52	7.6

SPECIFICATIONS
Metric

Order No.		Graduation	Range (range/rev)	Accuracy				Repeat- ability	Dial reading	Measuring force
w/ lug	Flat-back			Overall	Retrace	1/10 Rev	1 Rev
2929S-60	2929SB-60	0.01mm	0.8mm (1mm)	8µm	3µm	5µm	—	3µm	40-0-40	2.0N or less
2900S-70	2900SB-70	0.001mm	0.08mm (0.1mm)	3µm	2µm	2µm	—	0.5µm	40-0-40	2.0N or less

* Completed products inspection is performed in the vertical position (contact point downward) and the stated accuracy is guaranteed.

Inch

Order No.		Graduation	Range (range/rev)	Accuracy		Repeat- ability	Dial reading	Measuring force
w/ lug	Flat-back			First 1 Rev / 2.5 Rev / 10 Rev	Retrace
2910S-72	2910SB-72	.0001”	.008” / .01”	±.0001” / — / —	.0001”	±.00003”	4-0-4	2.5N or less

* Completed products inspection is performed in the vertical position (contact point downward) and the stated accuracy is guaranteed.

FEATURES

Metric

Inch