Specifications: Made from high quality chrome vanadium steel material, this hand tools set is extremely sturdy and durable for longer life. The flexible extension shaft can be bent, twisted and rotated at many different angles to reach small and narrow spaces. When inside shaft rotates, the flexible black casing protects your hands from hurt and perfectly completes your work. It is compatible with small wrench, cordless screwdriver, pneumatic screwdriver, electric screwdriver, etc. Item Name: Screwdriver Accessory Set Material: Alloy Quantity: 9Pcs, 28Pcs (Optional) Feature: Strong, Assorted Size, Easy Operation, Hardware Tool Suitable Chuck: 6.35mm/1/4" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 9Pcs: 1 x 100mm Drill Bit 2 x 65mm Drill Bit 3 x 3/4/5mm Twist Drill Bit 1 x 6mm Ceramic Tile Drill Bit 1 x 8mm Magnetic Sleeve 1 x 8mm Glass Drill Bit 28Pcs: 1 x 100mm Drill Bit 2 x 65mm Drill Bit 2 x 6/8mm Twist Drill Bit 1 x 6mm Ceramic Tile Drill Bit 1 x Universal Shaft 9 x Sleeve (5-13mm) 12 x Drill Bit (SL5, SL6, PH0, PH1, PH2, H2, H3, H4, T15, T20, AD)