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Used to check out-of-roundness from centerless grinding or other machining operations. Also used for measuring odd fluted taps, milling cutters, and reamers.
READABILITY FEATURES • Direct measuring of three and five-fluted tools • Starrett satin chrome finish – no glare – resists rust • Advanced sleeve design for precise and easy readability • Quick-reading figures – every thousandth numbered on inch tools
EASE-OF-HANDLING FEATURES • Balanced frame and thimble design ensure easy handling and readability • Ring-type knurled lock nut for quick and sure locking
• Combination ratchet and speeder for uniform pressure and quick adjustment
ACCURACY AND LONG-LIFE FEATURES • Rigid one-piece frame of drop forged steel • Extremely hard and stable one-piece spindle (the heart of our accuracy) • Carbide facing on spindle and anvils for extra long wear • Quick and easy adjustment