Series 449 4 Pc Depth Micrometer Set

Features: 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