20PCS Premium Hex Bit Set, Impact Hex Head Allen Wrench Drill Bit Set (Metric&SAE), 1/4" Hex-Shank S2 Alloy Steel Key Drill Bit Set with Magnetism, CNC Machined Tips, 2" Long with Storage Box
【S2 Tool Steel】Meet international standards: tempered at 350-800 deg F to obtain hardness of Rockwell C 58-62, stands up to abuse.
【Strong Magnetic Head】Helps you pick up screws easily / locate them more easily and the magnetism will not decay after many uses. Hospitalized black surface - ensures no rust in high humidity environments.
【CNC Machined tips】Achieve Negative tolerance: 0.2mm less than international standard. Precise fit, which is essential for optimal performance.
【Torsion】Torsion zone to absorb torque peaks to avoid breakage. For impact driver and heavy screw driving.
【Widely Used】Suitable for home repair, automotive, other screwdriver applications and consumer electronics repair. Examples include 3D printers, bed frames, motorcycles and cars, RC trucks, bicycles, etc.