Punch Drill: Punching dia.: 7mm / 0.28"; punching length: 40mm / 1.57"; shank dia.: 11mm / 0.43"; total length: 75mm / 2.95". It is polished, hardened to 52-55HRCApplications: 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 blockEasy 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 speedNotice: If the punch is blocked, it should be removed and cleaned up in time and reinstalled for use.
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