/ Onpin OP-B12B / OP-B16C Three-Jaw Tapping Torque Collet - B12/B16 Taper, M3-M12 Range, Quick-Change
The Onpin OP Series three-jaw tapping torque collet (models OP-B12B and OP-B16C) is a quick-change tool offering a broad clamping range of M3 to M12. Engineered with a built-in internal overload protection mechanism, it automatically slips under torque overload to prevent tap breakage and protect workpieces during blind hole tapping operations. The lineup offers compatibility with B12 spindle taper (OP-B12B) and B16 spindle taper (OP-B16C), both featuring an overall length of 120 mm and a net weight of 0.86 kg. It is widely applied in machinery manufacturing, machine tools, mold processing, automotive/motorcycle parts, and aircraft engine industries.
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The Onpin OP-B12B and Onpin OP-B16C (belonging to the OP Series) are heavy-duty three-jaw tapping torque collets (Quick-change Tools) engineered for precision internal thread tapping operations. Operating via an integrated torque-limiting mechanism, they feature an automatic slip function under torque overload to prevent tap breakage and protect workpieces during machining. The line offers a broad clamping range of M3 ~ M12 with two spindle taper options: B12 (model OP-B12B) and B16 (model OP-B16C).