The Starrett 440M Series Depth Micrometer features a combination ratchet and speeder, ring-type locknut, ratchet stop and locknut. The depths of holes, slots, shoulders and projections can be measured with these fine tools. Satin chrome reading surface is glare free and resists rust.
- Range (mm): 0-150mm
- Graduations (mm): 0.01mm
- Base Length (mm): 63.5mm
- Lock Nut Type: Ring Type Knurled
- Measuring Rods (qty): 6
- Rod Diameter (mm): 3.2mm
- Thimble Type: Ratchet
- Case Type: Padded Case
