MulWark 38 PC Security Torx Bit Set Long Tamper Proof Star Screwdriver Bit Set 1/4 Hex Shank S2 Steel T4 - T40 Magnetic Impact Driver Drill Bits

EXPERIMENT TESTS: The star bits have experienced torsion and hardness test. The results of tests show that the maximum torsion force of bits are 180-200N and the hardness of bits are 57-59HRC. The high torsion and proper hardness avoid the bits break and wear,USAGE VERSATILITY: 1/4 inch quick release hex shank driver bits fit for electric screwdriver, hand screwdriver, electric drills & air drills. Ideal for working on vehicles, bicycles & furniture. Assembling/repairing your furniture in an easy way,EFFICENT MAGNETIC IMPACT BIT HOLDER: The 3” magnetic bit holder ensures a secure grip, making your work more efficient and preventing frustrating drops during use,USAGE VERSATILITY - 1 & 2 inch torx bits fit for electric screwdriver, hand screwdriver, electric drills & air drills. Ideal for working on vehicles, bicycles & furniture. Assembling/repairing your furniture in an easy way.,CONVENIENT SIZES FOR VARIED PROJECTS: The set includes 13 torx bits with a 2'' length (50mm) and 13 torx bits with a 1'' length (25mm), providing versatility for various projects