Description:

-Material:High Speed Steel

-Diameter:  12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 16,5 mm, 17 mm, 18 mm, 18,5 mm, 19 mm, 19,5 mm, 20 mm, 20,5 mm, 21 mm, 21,5 mm, 22 mm, 22,5 mm, 23 mm,23,5 mm, 24 mm, 25 mm, 25,5 mm, 26 mm, 28 mm, 30 mm, 32 mm, 32,5 mm, 35 mm, 38 mm, 40 mm, 42 mm, 45 mm, 48 mm, 50 mm, 51 mm, 53 mm, 55 mm, 60 mm.  Available

-Sharpness: the Gear Part Is Sharp, the Vibration Is Small, and It Quickly Balances When Opening the Hole, and the Operation Is More Stable.

-Duration: 6542 High-speed Steel Is Made of High-speed Steel, Which Is Wear-resistant and Highly Stable.

-Easy Chip Removal: Special Hole Design for Chip Removal, Reasonable Structure and Fast Chip Removal.

-Continuous Blade: Universal Shaft Shape to Prevent Slipping and Bear Greater Torque.

- For Drilling Holes in Stainless Steel, Iron Plate, Steel Plate, Aluminum Alloy and Various Metal Pipes.

-Note: 1. the Cutting Material Must Be Fixed and at a 90 Degree Angle to the Hole Opener Without Moving.
2. When You Start Drilling, You Must the Material to Be Drilled Slowly and Not Hit the Workpiece. at the Same Time, It Is Suitable for Low Revolutions (the Larger the Hole Opener, the Lower the Revolution).
3.When Moving the Screws up and down, Please Do Not Use Too Much Force As the Screws Are Slippery.
4. If Possible, Coolant Can Be Added. Be Sure to Accelerate the Caster Speed When Piercing.
5. If There Is an Abnormality or the Chip Removal Is Not Smooth, Please Stop Working. Clean the Iron Filings Before Work.