Pneumatic Tapping Machine 400-700RPM - M3-M12 Self-Locking Air Tapper Tool
(The 700RPM high speed machine is not powerful enough, and the low speed（400RPM) force is better. 1 x Tapping Machine. 【1/4 air inlet】Pneumatic oil is dripped daily for smooth operation. 【Self locking collet】Double self-locking, more stable.