Fowler 52-243-240-1 Digital Truck Micrometer 2-40 Inch Inside Measurement - Heavy Duty Automotive & Industrial Use for Precision Machining, Engine Building, and Metalworking

Product Description

Fowler extension rod type Inside Micrometers have a wide measuring range - any one single micrometer can replace many bar type inside micrometers.

• Range: 2-40" Graduations: .001"
• Anvil and spindle are hardened and precision ground with microlap finish on ends.
• Spindle thread hardened, ground & lapped.
• Microfine graduations on satin chrome.
• Positive locking nut on spindle.
• It is recommended that the inside micrometer with a rod be calibrated by a micrometer or ring gage.
• Coiled spring pressure contact type rods are each marked with appropriate length.
• Quick, easy zero adjustment on the sleeve.
• Meets or exceeds Federal accuracy specs.
• Reference standard included with set.
• Includes a wrench and a fitted case.