uxcell 5.5mm Paper Punch Drill, Straight Shank Hollow Bit Tool, for Hole Puncher Punching Machine, 2pcs

Punch Drill: Punching dia.: 5.5mm / 0.22""; punching length: 40mm / 1.57""; shank dia.: 11mm / 0.43""; total length: 75mm / 2.95"". It is polished, hardened to 52-55HRC. Applications: 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.. 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. 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