10Pcs/Set 100mm Precision Screwdriver Set 1/4" Hex Shank S2 Stainless Steel Star Drill Head Screwdriver BST Bits Hand Tool SetDescription:These screwdriver bits are adopted with S2 quality stainless steel, which is impact resistant and tough, excellent wear-resistant. Exquisite workmanship, each edge can be accurately locked screws, without damaging the screw, and the head of the screwdriver. Features: Adopted with high quality S2 quality stainless steel, which is impact-resistant and durable, wear-resistant. There are different sizes of screwdriver bit head, T6, T7, T 8, T10, T15, t20, T25, T27, T30, T40. , so it is convenient to you, no matter it can meet your diverse requirements. By using the right screwdriver bar, pay less effort, and easily loosen the screws! Exquisite workmanship, each edge can be accurately locked screws, without damaging the screw, and the head of the screwdriver. Suitable for professional technical personnel, computer maintenance, camera maintenance, maintenance glasses, instrument maintenance, handheld electric screwdriver. Specifications:Materials: S2 Alloy Steel Hardness: HRC60Bit Size: T6, T7, T 8, T10, T15, T20, T25, T27, T30, T40Contents:1x100mm*T61x100mm*T71x100mm*T 81x100mm*T101x100mm*T151x100mm*T201x100mm*T251x100mm*T271x100mm*T301x100mm*T40Package Included:1 Set x Screwdriver Bit (Including 10pcs)1) We accept Alipay, West Union, TT. All major credit cards are accepted through the secure escrow of the payment processor.2) Payment must be made within 3 days of placing the order.3) If it cannot be brought immediately after the auction ends, please wait for a few minutes and try again, payments must be completed within 3 days. About Shipping1.