HARFINGTON 8Pcs SL4 Slotted Impact Screwdriver Bits 4mm Slotted Tip 1/4" Hex Shank 25mm-150mm(1"-6") Long Magnetic Flat Head Screw Driver Drill Bit Phosphated S2 Steel for Electric Power Tool

About this item

• Size - Magnetic slotted head size: SL4 (4mm); total length: 50 mm / 1 inch; 50 mm / 2 inch; 75 mm / 3 inch; 150 mm / 6 inch; hex shank: 1/4"; hardness: HRC60-61 (The recognized stable hardness is around HRC60.). Each screwdriver bit is clearly engraved with the model for easy identification.
• Material - Flat head screwdriver bits are made of heat-treated S2 steel with a hardness of up to HRC60-61, providing excellent strength, hardness and durability. The black phosphate coating is corrosion-resistant and reduces friction, making operation smoother and the screwdriver bit life longer.
• Features - The slotted head drill bit adopts magnetic design, which can absorb screws vertically or tilted, making it easy to remove and install screws in a small space. The impact slotted driver bit is precision machined for a consistent fit, and features a single slot design for use with Phillips or single slot screw constructions, provides higher torque, and is designed and constructed to withstand impact drills.
• Application - Slotted flat head drill bits are suitable for furniture assembly, mechanical equipment installation, auto repair, home DIY projects, homemade furniture, construction, carpentry construction, etc. 1/4" drive hex shank is widely used in impact drills, electric screwdrivers, manual screwdrivers, power drills, etc..
• Note - Please check whether it is firmly installed on the impact/power tool before use. Avoid using excessive force when tightening the screws to prevent the bit from being damaged or slipping out. Please keep away from high-temperature environments during storage to avoid affecting the magnetic effect.