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/ Onpin OP-304B2 Adjustable Clutch Air Drill - 3/8"-24UNF Spindle, Tapping M1-M3, Free Speed 1000rpm, Net Weight 0.74kg
Onpin OP-304B2 Adjustable Clutch Air Drill - 3/8"-24UNF Spindle, Tapping M1-M3, Free Speed 1000rpm, Net Weight 0.74kg
The Onpin OP-304B2 Adjustable Clutch Air Drill is a high-speed pneumatic threading tool engineered for machinery manufacturing, machine tools, mold processing, and automotive/motorcycle parts industries. It features a pressure-activated clutch mechanism that automatically slips upon reaching the preset torque to protect workpieces, alongside a 3/8"-24UNF spindle size supporting 1~3 mm tapping capacities across aluminum, copper, and iron. Operating at 1000 rpm free speed with an air consumption rate of 141 l/min at 6.2 bar (90 psi) air pressure. The tool integrates a forward/reverse switch with a locking function, low sound level of 77 dB(A), total length of 280 mm, and an ultra-lightweight net weight of 0.74 kg with a spring balancer hanging ring to minimize operator fatigue.
- OP-304B2
- 304B2
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- Onpin adjustable clutch air drill
- pneumatic air tapper M1 M3
- high speed air tapper 1000rpm
- pressure activated air tapping tool
- industrial air tapper 3/8-24UNF
Design file download links:
PDF fileDescription
Specification OP-304B2
The Onpin OP-304B2 Adjustable Clutch Air Drill is a high-speed pneumatic threading tool powered by compressed air at a standard operating pressure of 90 psi / 6.2 bar / 6.3 kg/cm². Featuring a pressure-activated start mechanism, it incorporates an automatic slip clutch that disengages when reaching the preset torque to protect workpieces and prevent tap breakage.
Key Features of Onpin OP-304B2
- Workpiece Protection Clutch Mechanism: Built with a clutch-type structure that automatically slips once the torque reaches the preset value.
- Adjustable Torque Design: Enables precise torque settings using a dedicated setting tool.
- 3/8"-24UNF Spindle Standard: Equipped with a 3/8"-24UNF spindle size and high-speed rotation at 1000 rpm, optimized for threading operations.
- Forward/Reverse Switch with Safety Lock: Features a reverse switch with a locking function—press the reverse button and turn clockwise to lock, turn counterclockwise to unlock.
- Fatigue-Reducing Hanging Ring: Includes a hanging ring design compatible with spring balancers to avoid tool damage and lower operator fatigue.
Technical Specifications of Onpin OP-304B2
- Brand: Onpin
- Model: OP-304B2 (or 304B2)
- Spindle Size: 3/8"-24UNF
- Tapping Capacity: Aluminum: 1~3 mm, Copper: 1~3 mm, Iron: 1~3 mm
- Free Speed: 1000 rpm
- Air Consumption: 141 l/min (5 cfm)
- Overall Length: 280 mm (11.02 inch)
- Air Inlet: 1/4" P.T.
- Net Weight: 0.74 kg (1.63 lb)
- Sound Level: 77 dB(A)
- Operating Air Pressure: 90 psi / 6.2 bar / 6.3 kg/cm²
Industrial Applications of Onpin OP-304B2
- Machinery Manufacturing Industry: Applied for precise small-thread tapping on industrial machinery components.
- Machine Tools: Suitable for thread-tapping tasks within machine tool setups.
- Mold Processing Industry: Ideal for precise hole threading on precision molds and dies.
- Automotive & Motorcycle Parts Industry: Designed for component threading and assembly in automotive and motorcycle parts manufacturing.
