Mitutoyo 169-202-10 Series 169 Disc Micrometer, Non-Rotating Spindle, 25-50 mm Range, 20 mm Anvil Diameter

The Mitutoyo mechanical non-rotating spindle disc micrometer is designed to measure the root tangent length of spur gears and helical gears with high accuracy. 

The Mitutoyo mechanical disc micrometer uses flat discs constructed of hardened steel in Mitutoyo own Japanese facilities to measure lengths of spur and helical gears. The non-rotating spindle prevents workpiece deformation and wear by reducing torque on parts being measured. The flatness and thinness of the discs allow for reliable measurements in tight spaces.  A ratchet-stop mechanism  provides uniform pressure on a workpiece for precise, repeatable measurements and eliminates over-speed error.

Features:

• Ratchet mechanism provides an audible click to ensure measurement is performed at a constant force
• Knurled friction thimbles provide quick adjustments even when wearing gloves
• Satin chrome finish on the sleeve and laser etched measurements on thimble for easier reading
• Frame has a baked enamel finish for durability and longer lifespan
• Supplied in fitted plastic case