Onpin OP-B12A Three-Jaw Tapping Torque Collet - B12 Taper, M3-M8 Range, Overload Protection

Specification OP-B12A (Adjustable Clutch Type)

The Onpin OP-B12A is a heavy-duty three-jaw tapping torque collet (Quick-change Tool) designed for precision internal thread tapping operations. Operating via an integrated torque-limiting mechanism, it features an automatic slip function under torque overload to prevent tap breakage and protect workpieces during machining. The unit is equipped with a standard B12 spindle taper connection and covers a clamping range of M3 ~ M8.

Key Features of Onpin OP-B12A

1. Three-Jaw Clamping Design: Ensures secure, concentric, and fast clamping for various tap shanks.
2. Built-in Overload Protection: Automatically slips when rotational torque exceeds safety limits to prevent tap snapping.
3. Optimized for Blind Hole Tapping: Effectively guards both the workpiece and the tap when hitting the bottom of blind holes.
4. B12 Spindle Taper Compatibility: Mounts seamlessly onto standard B12 taper machine spindles and drilling/tapping machines.

Technical Specifications of Onpin OP-B12A

1. Brand: Onpin
2. Product Model: OP-B12A
3. Tool Type: Three-Jaw Tapping Torque Collet / Quick-change Tool
4. Spindle Taper Size: B12
5. Clamping Range: M3 ~ M8
6. Overall Length: 120 mm (4.72 inches)
7. Net Weight: 0.6 kg (1.32 lbs)

Industrial Applications of Onpin OP-B12A

1. Machinery Manufacturing Industry: Used on metalworking machinery for precision threading operations.
2. Machine Tools: Integrated as a quick-change tapping accessory on drilling and tapping machine spindles.
3. Mold Processing Industry: Ideal for tapping mold bases and components without the risk of broken taps damaging expensive molds.
4. Automotive & Motorcycle Parts Industry: Applied in mass production lines for engine and chassis component threading.
5. Aircraft Engine Industry: Suitable for high-precision tapping operations in aerospace component fabrication.