Includes 8 high-strength alloy steel bits (PH2/PH3 , SL6/SL8 slotted, H5/H6/H8/H10 hex)7 sockets (8/10/11/13/14/17/19mm) for standard bolt sizes. Exclusive 8mm quick-change adapter for instant tool switching. Made of S2 alloy steel with heat-treated hardness up to HRC60±2 12-point socket design increases grip area by 30% to prevent slippage Chrome-plated for 3x longer resistance Smart Adapter System Fully compatible with: Hammer drills (max input torque 150N·m) Power wrenches (1/2inch square drive) Impact drivers (6.35mm hex shank) User-Friendly Design Extension bar with anti-roll grooves (15mm grip zone) Chamfered socket edges to protect bolt coatings Please note: There may be slight color difference or discrepancy in the actual product, which does not affect the use, please don't mind, thank you! Color: As Shown Material: Alloy Steel Package Contents: 17PCS x Multi Purpose Quick Change Hex Socket Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.