Spiral Cutter Quick Chip Removal Twist Drill Bits With 1/2in Shank For Aluminum Copper Stainless Steel Feature:1. Spiral type: spiral design, it has good chip removal performance and fast drilling speed, and can improve work efficiency.2. 118° edge angle: The twist drill has an edge angle of 118° for accurate positioning and glossy cutting.3. High-speed steel: made of excellent high-speed steel, with high hardness and wear resistance, not easy to deform.4. 1/2IN SHANK: With standard 1/2in shank, easy to install, and it is not easy to fall off when the unit is turned off, or loose when in use.5. Material that can be applied: used for iron, aluminum, copper, stainless steel, matte steel, high-speed steel, manganese steel and various hardened steel parts. Specification:Item Type: Twist Drill Material: High Speed SteelShank Diameter: 12.7mm (1/2in)Blade Length: Approx. 77mm/3inBlade Diameter: Approx. 35mm/1.4inApplication: Suitable for Iron, Aluminum, Copper, Stainless Steel, Matte Steel, High Speed Steel, Manganese Steel Steel, Various Hardened Steel PartsPacking List:1 x Drill Bit Note: The blade is sharp, please pay attention to the protection. 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.