Internal 3-Point Micrometer 16-20 mm with extensions and setting ring

For through holes and bottom holes.

With matt chrome-plated reading parts, carbide measuring surfaces and friction device that provides a constant measuring force and self-centers the measuring unit.

Delivered in aluminum box.

• Carbide measuring surfaces
• Constant measuring force
• Incl. extension 150 mm
• Incl. control ring
• For through holes and bottom holes