产品描述:
Mechanical Tube Micrometers - Enamelled Frame
For measuring wall thickness, collars, tubing etc. checking dimensions from inside holes to outside edges. Measuring faces are carbide tipped, anvil and spindle are hardened, precision ground and micro-lap finished. Glare-free satin chrome sleeve and thimble, ratchet stop and positive locking clamp. Instrument Error: /-3mm.
Series 115
Two Spherical Face Type