INSIZE DIGITAL SCREW THREAD MICROMETER (CODE – 3581)

Measure pitch diameter of screw threads Resolution 0.001mm/0.00005" Button function: on/off, set, mm/inch, data transmit Data output Automatic power off Non-rotating spindle Ratchet stop Supplied with 60° setting standards (except 0-25mm/0-1") Optional accessory: 55° setting standards, data output cable

Measuring tips are optional

Code Range L (mm) b (mm) 55° setting standard code(optional)
3581-25A  0-25mm/0-1″ 42 26
3581-50A  25-50mm/1-2″ 67 38 3281-SP1
3581-75A  50-75mm/2-3″ 92 50 3281-SP2
3581-100A  75-100mm/3-4″ 117.6 62 3281-SP3
3581-125A  100-125mm/4-5″ 143 70 3281-SP4
3581-150A  125-150mm/5-6″ 168.2 82 3281-SP5
3581-175A  150-175mm/6-7″ 192 94.5 3281-SP6
3581-200A  175-200mm/7-8″ 217 107 3281-SP7
3581-225A  200-225mm/8-9″ 242 130 3281-SP8
3581-250A  225-250mm/9-10″ 267 142 3281-SP9
3581-275A  250-275mm/10-11″ 291 155 3281-SP10
3581-300A  275-300mm/11-12″ 317 167 3281-SP11

Measuring tips are included

Code Range L (mm) b (mm) Measuring tips (included) 55° setting standard code(optional)
3581-S25 0-25mm 42 26 6 pairs of measuring tips: metric and unified thread (60° thread angle) 0.4-0.5mm/64-48TPI, 0.6 0.9mm/44-28TPI, 1-1.75mm/24-14TPI, 2-3mm/13-9TPI, 3.5-5mm/8-5TPI,5.5-7 mm/4.5-3.5TPI
3581-S50 25-50mm 67 38 3281-SP1
3581-S75 50-75mm 92 50 3281-SP2
3581-S100 75-100mm 117.6 62 3281-SP3
3581-S125 100-125mm 143 70 3281-SP4
3581-S150 125-150mm 168.2 82 3281-SP5
3581-S175 150-175mm 192 94.5 3281-SP6
3581-S200 175-200mm 217 107 3281-SP7
3581-S225 200-225mm 242 130 3281-SP8
3581-S250 225-250mm 267 142 3281-SP9
3581-S275 250-275mm 291 155 3281-SP10
3581-S300 275-300mm 317 167 3281-SP11

Accuracy of micrometers with tips

Pitch Range
0-25 (mm) 25-50  (mm) 50-75  (mm) 75-100  (mm) 100-125  (mm) 125-200 (mm) 200-225 (mm) 225-300 (mm)
0.4~0.5 ±0.01
0.6~0.8 ±0.01 ±0.013
1~1.25 ±0.012 ±0.015 ±0.017 ±0.017
1.5~2.0 ±0.014 ±0.017 ±0.019 ±0.019 ±0.02 ±0.023 ±0.025 ±0.028
2.5~3.5 ±0.016 ±0.019 ±0.021 ±0.021 ±0.023 ±0.025 ±0.028 ±0.031
4.0~7.0 ±0.021 ±0.023 ±0.023 ±0.025 ±0.028 ±0.031 ±0.033

MEASURING TIPS FOR SCREW THREAD MICROMETER

                      Metric & unified thread (60° thread angle)                                                           Whithworth thread (55° thread angle)

Code Pitch Code Pitch
7381-T11 0.4-0.5mm/64-48 TPI 7381-T21 60-48TPI
7381-T12 0.6-0.9mm/44-28TPI 7381-T22 48-40TPI
7381-T13 1-1.75mm/24-14TPI 7381-T23 40-32TPI
7381-T14 2-3mm/13-9TPI 7381-T24 32-24TPI
7381-T15 3.5-5mm/8-5TPI 7381-T25 24-18TPI
7381-T16 5.5-7mm/4.5-3.5TPI 7381-T26 18-14TPI
7381-TS 6 Pair/Set, including all above tips 7381-T27 14-10TPI
7381-T28 10-7TPI
7381-T29 7-4.5TPI
7381-T210 4.5-3.5TPI
7381-T2S 10 Pair set. Including all above tips

°

digital screw thread micrometer-3581_2

digital screw thread micrometer-3581_1

  • Measure pitch diameter of screw threads
  • Resolution 0.001mm/0.00005″
  • Button function: on/off, set, mm/inch, data transmit
  • Data output
  • Automatic power off
  • Non-rotating spindle
  • Ratchet stop
  • Supplied with 60° setting standards (except 0-25mm/0-1″)
  • Optional accessory: 55° setting standards, data output cable