CYLBAQ Square Screwdriver Bits, 13Pcs Square Head Screwdriver Bit Set SQ1 SQ2 SQ3 25+75+100+150mm S2 Steel Tamper Proof 1/4” Hex Shank Magnetic Security Bits with Bit Extension Holder

• 💎【Premium Material】CYLBAQ Square Screwdriver Bits are made of excellent industrial grade S2 steel material for superior hardness and wear resistance, durable for a long time service. Ideal tool for electrician, industrial use, home maintenance, diy project, anti-theft system and repair work.
• 💎【Impact Bit Design and Phosphating Treatment】Impact design for greater torque and improved work efficiency, a versatile addition to your toolkit. Square security bits surface phosphating treatment, the special process greatly improves the anti-rust and anti-corrosion performance of the bits; wrapped with wear resistant rubber, waterproof and rustproof.
• 💎【Strong Magnetic】Magnetizable Square head screwdriver bits can be easily keep screws stuck to them,can improve your work efficiency; Each edge of the square bit can be accurately locked screws, precision tip geometry delivers superior fitment, no damage to the screw and the screwdriver head.
• 💎【Professional Sizes】The square bits set is security tamper proof design. Include SQ1 SQ2 SQ3, 25mm/75mm/100mm/150mm overall length in total 12 pieces and 1pcs 60mm Bit Extension Holder. 6.35mm/ 1/4 inch Hex Shank.
• 💎【Wide Application】The square screwdriver set can be easily inserted into any 1/4” hex shank electric screwdrivers, hand screwdrivers, electric drills, air drills and so forth. Widely used in repairing household appliances, precision instruments, furniture.

Specification: Material: S2 high quality steel Size: SQ1 SQ2 SQ3 Type of Head: Square Type of Hex Shank: 6.35mm / 1/4 inch Overall Length: 25mm 75mm 100mm 150mm Features: - Made of high quality S2 steel which is anti-impact, tough, wear resistant and duable for long time. - Special phosphating black treatment, improves the anti-rust and anti-corrosion performance. - Strong magnetic square screwdriver bits, can suck the screws easily when using, convenient to use, improve your work efficiency. - Exquisite workmanship, each edge can be accurately locked screws, no damage to the screw and the screwdriver head. - Ideal screwdriver bits with 1/4 inch hex shank, can be firmly fixed on screwdrivers, fitting for electric screwdrivers, hand screwdrivers, electric drills, air drills and so forth. - Ideal screwdriver tool accessory, widely used for repairing power tools, household appliances, precision instruments industry, furniture industry. Warm Tips: 1.Do Not turn the screws with unmatched size, in case get both screw and bit damaged. 2.Please allow 1-3mm errors due to manual measurement. Welcome to contact us If you have any problem, we would like to help you deal with it.