GLFSIL Tungsten Carbide steel hard Alloy drill stainless steel spring steel 3-12mm

Features: 1. This drill can be installed on various machines such as ordinary hand drills bench drills and lathes. It is not recommended to use the lithium battery hand drill if the torque and power are not enough. 2. When drilling it must be cooled with water and the force should be light and very slow especially when starting to drill and about to drill through slowly and evenly 3. After use please clean the surface of the product and apply anti-rust oil to prevent rust 4. Various hand tools must be installed according to the correct steps and the use of tools is prohibited before they are installed 5. Drilling of high-hardness materials needs to be cooled with cutting fluid and the high temperature of dry drilling will easily cause the solder joints of the alloy cutter head to fall off and be scrapped. Specification: Name: Alloy Drill Bit Material: M35 Diameter: 3mm-12mm Color:silver Metal Nemesis 135 Degree Sharpening Sharp And Hard Uses: Stainless Steel Abrasive Steel Aluminum Alloy Cast Iron Copper Aluminum Plastic Wood Etc. Electric Drill Processing Operation Tips: 1: When Drilling The Drill Bit And The Stainless Steel Plate Are Perpendicular To 900° 2: If The Hole Is Larger Than 6mm Use A 3.2mm-4mm Drill Bit To Drill Small Holes And Then Use A Big Drill To Ream The Holes 3: The Electric Drill Chuck Must Clamp The Double-headed Drill And The Exposed Part Is As Short As Possible. The Cutting Edge Of The Drill Does Not Need To Be Too Sharp Too Sharp 4: The Number Of Revolutions Of The Electric Drill Should Be Between 800-1500 And The Effect Is Better. The Number Of Revolutions Should Not Be Too Large Which Will Burn The Drill Bit And Cause Annealing. 5: Before Punching You Can Use Sample Punch (or Nails Can Be Used Instead) To Punch At The Punching Position Center Point The Drill Will Not Run Off Package content: 2pcs * drill bits or 5pcs drill bits Note: 1.We provide clear pictures measurements where possible. Please check as much as possible to make sure the item is the that you need. 2.Please allow 0.5-1 inch difference due to manual measurement.(1inch=2.54cm) 3.There are no instructions included in this kit.If you want to know how to use or install it please contact us by Email.We will provide help as much as possible.