L.S. Starrett 445 Series Depth Micrometer Sets

• Combination ratchet and speeder for uniform pressure and quicker adjustment
• Ring-type lock nut for quick and sure locking
• 5/32" diameter measuring rod
• Ground and lapped precision screw
• Adjustable measuring rod
• Base shape design automatically positions fingers so that base is held easily in place
• Ground, hardened, and lapped base and rod
• No-glare finish