Mitutoyo 151-221 Series 151 Micrometer Head, Heavy Duty, 8 mm Spindle, 0-25 mm, Clamp Nut, 0.001 mm Graduation

The Mitutoyo heavier duty micrometer head has a large spindle diameter of 8mm constructed of hardened steel for precision adjustments and measurements with heavy-duty use. Its carbide-tipped spindle is exceptionally flat, accurate and durable.

Features:

• A long spindle type is available for a variety of applications
• Mic head has a 21 mm thimble diameter
• Spindle diameter is 8 mm / 0.314"
• Mic head total length (at stroke end) is 5 mm / 5.69"
• Mounting stem diameter is 12 mm / 0.5"
• Spindle faces have lapped surfaces and are constructed of carbide. 
• Thimble is hard-chrome plated with laser-etched scales for easy-to-read measurements