【Product details】- Punching dia.: 4mm / 0.16-inch; punching length: 35mm / 1.38-inch; shank dia.: 11mm / 0.43-inch; total length: 70mm / 2.76-inch. It is polished, hardened to 52-55HRC
【Features】- Overall quenching, high hardness, not easy to break. 90-degree inner chamfer opening, good edge sharpness and strength, 80% less resistance than traditional technology, not easy to block
【Easy To Use】- Papers should be placed flat when punching. Pay attention to the lubrication of the punch drill. The smaller the pinhole, the slower the speed
【Application】- This paper punch drill is specially used for punching tags, wall calendars, desk calendars, account books, and handbags. Suitable for ordinary paper, offset paper, coated paper, grease film paper, leather, fabric etc.
【Notice】- If the punch is blocked, it should be removed and cleaned up in time and reinstalled for use. It is often waxed and lubricated (candle or soap is a good substitute) at the cutting edge of the drill
