(Aurora, IL) The new line of Holtest bore gages from Mitutoyo America Corporation employ a titanium nitride coating to offer increased durability and abrasion resistance while making high accuracy, three-point bore diameter measurements.
The measuring pin contact faces of the new Mitutoyo Holtest bore gages are coated with titanium nitride (Holtest and Digimatic Holtest models). As a result, the pins can be made of hardened steel instead of more brittle carbide, providing extra toughness to reduce the likelihood of contact faces being chipped during measurement.
Comparison of pin materials
Hardness (Hv) Shear strength (N/mm2)
Titanium-coated steel 1700-2000 4000
Carbide 1330-1530 1220-1800
The three-point design of the Holtest bore gages assures smooth, highly stable measurement in the ranges above 8mm bore diameter while a constant-force ratchet minimizes measurement variations between different operators. Optional extension rods can be fitted to enable measurement of deeper holes.
Digimatic Holtest bore gages are also equipped with an easy to read digital display and the ABS (Absolute) scale with absolute origin, which eliminates the necessity to set the origin at every power-on. The system also eliminates over-speed errors for increased reliability.
Mitutoyo America Corporation's nationwide network of Metrology Centers and support operations provide application, calibration, service, repair and educational programs for industry. This ensures that our 6,000+ metrology products will deliver measurement solutions for our customers throughout their lifetime. Contact Mitutoyo America Corporation, 965 Corporate Boulevard, Aurora, IL 60504. Phone: (630) 978-5385 Fax: (630) 820-7403
E-mail: info@mitutoyo.com Or visit our website at www.mitutoyo.com
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