Triangular Drill Head Multiple Sizes Multifunctional Triangular Screwdriver Parts Kit Hard Alloy Exquisite With Triangular Handle Feature:1. Carbide material: hard alloy drill combined with widening and smooth grooving process faster, facilitates chip removal and greatly improves working efficiency.2. Not easy to slip: the drill shank is cut into a three-dimensional triangle, so that the electric drill is fixed more tightly, and it is not easy to move when drilling, and it is safer to use.3. Multi-function drill: the triangular shank multi-function drill bit can easily penetrate a variety of materials, easy to locate, stable drilling, speed, no limit damage, and neat opening.4. Stable Function: The triangular multi-function drill bit has low cutting resistance and stable function. Smooth, no folds, no shattering, easy chip cutting.5. Durable: The triangular shank multi-function drill bit has exquisite workmanship, small size, light weight and practicality, portable and lightweight, no burden. Specification:Item Type: Drill Material: Cemented Carbide Gross Weight: 300.00g Diameter: 4pcs x approx. 6mm/0.23inch, 2pcs x approx. 8mm/0.31in, 2pcs x 10mm/0.39in, 2pcs x approx. 12mm/0.47in Quantity: 10pcsScope of application: Steel, Copper, Stainless Steel, Iron, Aluminum, Ceramic Tile, Wood, Plastic, Glass, Concrete, Brick Wall, Cement, etc. Packaging List: 10 x Drill Bits 1) we accept Alipay, West Union, TT. All major credit cards are accepted through the payment processor's secure escrow. 2) Payment must be made within 3 days of placing the order. 3) If you can't check out immediately after the auction ends, please wait a few minutes and try again, payments should be completed within 3 days. About Shipping 1.