Feature: 1. Made of high-quality materials, the bit set is durable and corrosion resistant after long time use. 2. This set has the most common drill bit types and sizes, which is very useful. 3. The use of safety fasteners is becoming more and more common in repairing work. 4. The set is suitable for furniture, cars, toasters, video games, sewing machines, more electronic products, etc. 5. With very simple installation, user just directly selects the bit to be used and install it on the top of the screwdriver. Specification: Item Type: Screwdriver Bit Set Material: Chrome vanadium steel, chrome Model: JM-6113 30Pcs Bright Chrome Screwdrivers(6.3 x 25mm) Slot (mm): 3.0/4.0/5.0/6.0/7.0 Cross (mm): 4.0/5.0/6.0/6.5 Pentalobe: T9/T10/T15/T20/T25/T30 Hex: H2.5/H3.0/H4.0/H5.0/H6.0 Fork Type: Y1/Y2/Y3 U Type: U6/U8 Triangle: 2.3 Round Type: R1 PZ: Pz1/Pz2/Pz3 34Pcs Chrome Vanadium Steel Screwdrivers(4 x 28mm) Pentalobe: T3/T4/T5/T6/T7/T8/T9/T10/T15/T20 Hex: 0.9/1.3/1.5/2.0/2.5/3.0/3.5/4.0/4.5/5.0/6.0 Slot: 1.0/1.5/2.0/2.5/3.0/3.5/4.0 Cross: 1.0/1.5/2.0/2.5/3.5 Triangle: 2.0/2.3 Star: 0.8 Fork Type: Y2.0 U Type: U2.6 1Pc H6.3 x 155mm Extended Hard Rod 1Pc H4 x 130mm Extended Soft Rod 1Pc H4 x 100mm Extended Hard Rod 1Pc 180° Steering Screwdriver 1Pc Clockwise Screwdriver. Package List: 2 x Screwdriver68 x Bit3 x Extension Rod1 x Tool Box