Fangrui Product Details The Thin Waist Buffer Absorbs The Strong Impact From The Impact Machine, So That The Batch Head Has Good Impact Resistance. The Material Selection Is Optimized, And The Hardness Of The Batch Is As High As 62hrc, Which Is More Powerful And . Fit Screws Are Tightly Engaged To Improve Work Efficiency, And The Use Does Not Swing Or Slip. According To The Mechanical Principle, The Collision Reaction Force Generated By Impacting The Screwdriver After Touching The Screw Head Is Absorbed By The Torsion Part, Which Effectively Prevents The Cutter Head From Being Broken. Strong Torque, Easy Disassembly Is Suitable For Furniture Maintenance, Automobile Maintenance, Assembly Disassembly, Toy Disassembly, Mechanical Maintenance, Bicycle Maintenance. Name: Screwdriver Set Specification: 25-150mm Batch Head Quantity: 6pcs/ Set Handle Diameter: 6.35mm Colour:black+orange Material:steel Package Contents: 1 X Screwdriver Set (1 X 25mm Screwdriver, 1 X 50mm Screwdriver, 1 X 65mm Screwdriver, 1 X 70mm Screwdriver, 1 X 90m