L.S. Starrett 449 Series Depth Micrometer Sets

• Non-rotating, blade-type rods
• Comes with the combination ratchet and speeder for uniform pressure and quicker adjustment
• 2 1/2" base length
• 0.45 x 1/8" rod size
• Adjustable measuring rod
• Rust resistant
• Blade moves perpendicularly only, permitting measurement of narrow shoulders without the blade rolling off
• Ground and lapped precision screw
• Ground, hardened, and lapped base and rod
• No-glare finish