INSIZE TWO POINTS / THREE POINTS INTERNAL MICROMETER (CODE – 3227)

Code:

▪Meet DIN863-4
▪2-12mm: graduation 0.001 mm | 12-300mm: graduation 0.005mm
▪Ratchet stop
▪Optional accessory: setting rings (code 6312), micrometer stand and clamp (code 6301 and 6301-2)

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INSIZE TWO POINTS / THREE POINTS INTERNAL MICROMETER (CODE – 3227)

Product Overview

The INSIZE Two Points / Three Points Internal Micrometer (Code 3227) is a precision measuring instrument designed for accurate internal diameter measurement. Built in compliance with DIN863-4 standards, this series covers a comprehensive range from 2mm up to 300mm using specialized type configurations (Type A, Type B, Type C, and Type D). The instrument features a ratchet stop for consistent measuring force and carbide measuring points across specified ranges.

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Key Features & Capabilities

Standard Compliance: Meets DIN863-4 requirements.
Graduation:
2–12mm range: 0.001 mm graduation
12–300mm range: 0.005 mm graduation
Ratchet Stop: Ensures stable and repeatable measuring force.
Construction & Types:
Type A (2–6mm): Carbide measuring points, two points.
Type B (6–12mm): Steel measuring points, three points.
Type C (12–100mm): Carbide measuring points, three points.
Type D (50–300mm): Carbide measuring points, three points.
Optional Accessories: Setting rings (code 6312), micrometer stand and clamp (code 6301 and 6301-2).

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Technical Specifications & Individual Models

Code	Range	Type	Accuracy	Setting ring (included)	Extension rod (included)	L	a	b	c
3227-2\*	2-2.5mm	A (two points)	6µm	Ø2.5 (included)	—	12	—	—	—
3227-3\*	2.5-3mm	A (two points)	6µm	Ø2.5 (included)	—	12	—	—	—
3227-4\*	3-4mm	A (two points)	6µm	Ø4 (included)	—	22	—	—	—
3227-5\*	4-5mm	A (two points)	6µm	Ø5 (included)	—	22	—	—	—
3227-6\*	5-6mm	A (two points)	6µm	Ø6 (included)	—	22	—	—	—
3227-8\*	6-8mm	B (three points)	4µm	Ø6 (included)	100	54.5	1.5	2.5	—
3227-10\*	8-10mm	B (three points)	4µm	Ø8 (included)	100	54.5	1.5	2.5	—
3227-12\*	10-12mm	B (three points)	4µm	Ø10 (included)	100	54.5	1.5	2.5	—
3227-16\*	12-16mm	C (three points)	4µm	Ø16 (included)	150	80	0.5	6	4.5
3227-20\*	16-20mm	C (three points)	4µm	Ø16 (included)	150	80	0.5	6	4.5
3227-25\*	20-25mm	C (three points)	4µm	Ø25 (included)	150	90	0.5	8	6
3227-30\*	25-30mm	C (three points)	4µm	Ø25 (included)	150	90	0.5	8	6
3227-40\*	30-40mm	C (three points)	4µm	Ø40 (included)	150	97	0.5	14	12
3227-50\*	40-50mm	C (three points)	5µm	Ø40 (included)	150	97	0.5	14	12
3227-63\*	50-63mm	D (three points)	5µm	Ø62 (included)	150	114	0.5	17.5	14.5
3227-75\*	62-75mm	D (three points)	5µm	Ø62 (included)	150	114	0.5	17.5	14.5
3227-88\*	75-88mm	D (three points)	5µm	Ø87 (included)	150	114	0.5	17.5	14.5
3227-100\*	87-100mm	D (three points)	5µm	Ø87 (included)	150	114	0.5	17.5	14.5
3227-125\*	100-125mm	D (three points)	6µm	optional	150	140	0.9	29	25
3227-150\*	125-150mm	D (three points)	6µm	optional	150	140	0.9	29	25
3227-175\*	150-175mm	D (three points)	7µm	optional	150	140	0.9	29	25
3227-200\*	175-200mm	D (three points)	7µm	optional	150	140	0.9	29	25
3227-225	200-225mm	D (three points)	8µm	optional	150	140	0.9	29	25
3227-250	225-250mm	D (three points)	8µm	optional	150	140	0.9	29	25
3227-275	250-275mm	D (three points)	9µm	optional	150	140	0.9	29	25
3227-300	275-300mm	D (three points)	9µm	optional	150	140	0.9	29	25

\Supplied with manufacturer inspection certificate*

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Micrometer Sets Configuration

Set Code	Range	Micrometers Included	Setting Ring (Included)	Extension Rod (Included)
3227-232\*	2-3mm	2–2.5mm, 2.5–3mm	Ø2.5mm	—
3227-363\*	3-6mm	3–4mm, 4–5mm, 5–6mm	Ø4mm, Ø5mm, Ø6mm	—
3227-123\*	6-12mm	6–8mm, 8–10mm, 10–12mm	Ø6mm, Ø8mm, Ø10mm	100mm
3227-202\*	12-20mm	12–16mm, 16–20mm	Ø16mm	150mm
3227-504\*	20-50mm	20–25mm, 25–30mm, 30–40mm, 40–50mm	Ø25mm, Ø40mm	150mm
3227-1004\*	50-100mm	50–63mm, 62–75mm, 75–88mm, 87–100mm	Ø62mm, Ø87mm	150mm