Description
The Mitutoyo 368-776 Holtest (Type II) Three-Point Internal Micrometer has the following specifications:
Range: 150-175mm
Graduations: .005mm
Accuracy: +/- .005mm
Measuring Contacts: 3-point
Measuring Depth: 161mm
Features:
Available in Metric and Inch models
Optional extension rod allows for measuring deep holes
Optional setting rings for zero point adjustment are available
Design allows for measurements closer to the bottom of blind bore holes
Scale on thimble and sleeve is laser etched for easier reading in all conditions
Holtests up to 4″/100mm diameter measurements supplied in a fitted plastic case
Holtests over 4″/100mm diameter measurements supplied in a wooden case
The Mitutoyo 368-776 Holtest (Type II) mechanical three-point internal micrometer utilizes three self-centering anvils constructed of alloyed steel for accurate and efficient measurements of inside dimensions of bores. The Mitutoyo mechanical Holtest Type II internal micrometer features three alloy steel anvils evenly spaced at 120° for true alignment of the axis bore for accurate, easily repeatable measurements. A hardened steel spindle with a carbide ball and cone with a carbide pin ensure accuracy and durability when extending and retracting the anvils. The holtest’s ratchet stop mechanism provides a constant measuring force on the hardened-steel spindle to ensure accurate, even measurements.
Technical Data:
Technology: Mechanical
Contact Point: Alloy Steel
Measuring Method: Three-point method
Ratchet/Thimble: Ratchet Stop


