Utoolmart 9mm Paper Punch Drill, Straight Shank Hollow Bit Tool, for Hole Puncher Punching Machine 2Pcs

Utoolmart 9mm Paper Punch Drill, Straight Shank Hollow Bit Tool, for Hole Puncher Punching Machine 2Pcs

【Product details】- Punching dia.: 9mm / 0.35-inch; punching length: 40mm / 1.57-inch; shank dia.: 11mm / 0.43-inch; total length: 75mm / 2.95-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 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 Utoolmart Paper Punch Drill, Straight Shank Hollow Bit Tool

Information
* 1. When drilling, the drilled holes must not be repeated again. Otherwise, the drilled holes cannot be rounded, and the inside of the drilled holes will be blocked by paper scraps.
* 2. Reasons for the blockage of punch drills: Papers are not tidy and uneven; gaskets are not put in right place or lubrication are not enough etc.; punched papers cannot be punched repeatedly; If the drilling size is small, the pressing rod speed should be slower; the drilling time is too long; the thickness of the drilling paper is too thick.
* 3. Please wear work clothes and protective glasses to prevent the skin and eyes from being injured. Heat is generated during the drilling process. When the product is rotating, it is strictly prohibited to touch it by hand.
* 4. Straight shank (H): Installed on the machine with screws (need to be screwed). Easy to disassemble.

Wide Applications
* Widely used in punching tags, photo albums, wall & desk calendars, account books, and handbags. Suitable for ordinary paper, offset paper, coated paper, grease film paper, leather, fabric etc.
* The stacking thickness of the offset paper should be 80% of the punching thickness, 60% for base paper, 40% or less for grease film or glazing paper. For example: drill bit with 6mm punching diameter and 50mm punching length (thickness). The total thickness of offset paper to be drilled should be 40mm; the master paper or base paper should be 30mm; and the film or glazing paper should be less than 20mm.

Technical Parameters
Product Name: Hollow Paper Drill
Feature: Straight Shank
Main Color:Silver + Black
Punching Diameter: 9mm / 0.35-inch
Punching Length: 40mm / 1.57-inch
Shank Diameter: 11mm / 0.43-inch
Total Length: 75mm / 2.95-inch
HRC :52-55

Package Content
2pcs x Hollow Paper Drill