Auniwaig Taper Straight Shank Hollow Bit Tool 8mm Paper Punch Drill for Hole Puncher Punching Machine 2PCS | Durable Steel, 40mm Length, Suitable for Paper & Leather

• 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 — 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
• Product details — Punching dia.: 8mm / 0.31-inch; punching length: 40mm / 1.57-inch; shank dia.: 10.7~11.7mm / 0.42~0.46-inch; total length: 75mm / 2.95-inch; It is polished, hardened to 52-55HRC

• Prepare Material — Place the paper, leather, or fabric flat on a stable surface, ensuring no layers exceed the supported thickness. Use a ruler or guide for precise positioning.
• Attach & Lubricate — Insert the drill into the punching machine's shank, ensuring a tight fit. Apply wax or soap at the cutting edge to reduce resistance and prevent blockage.
• Punch & Clean — Align the drill with the mark, press firmly to punch. Remove debris immediately, and clean the drill after use to maintain sharpness and longevity.

Typical situations where Auniwaig Taper Straight Shank Hollow Bit Tool 8mm Paper Punch Drill for Hole Puncher Punching Machine 2PCS | Durable Steel helps — illustrative scenarios, not customer reviews.