4pcs 50mm Triangle shaped Screwdriver Bits Δ1.8/Δ2.0/Δ2.3/Δ2.7 1/4 Inch Hex Shank Description: These screwdriver bits are made of S2 material which is durable and tough. With 1/4 inch hex shaft, they are widely used on electric screwdrivers, hand screwdrivers, electric drills, etc. What are you waiting for? Get this set and make your life easier. Features: Made of S2 steel material which is durable and tough, a commonly used material in hardware. These screwdriver bits have strong magnetism that can attract and hold screws firmly. With 1/4 inch hex shaft, they are widely used on electric screwdrivers, hand screwdrivers, cordless drills, etc. There are four screwdriver bit sizes of TA1.8/TA2.0/TA2.3/TA2.7 in this set. Triangle-shaped screwdriver bit can drive screws in devices such as vacuum cleaners, fan heaters, elevators, camping stoves. Specification: Materials: S2 alloy steel Color: As shown in the pictures Magnetic: Yes Head Type:  TA1.8/TA2.0/TA2.3/TA2.7 Hex Shank: 6.35mm(1/4") Length of Screwdriver Bit: 50mm / 1.97" Quantity: 4pcs Package Includes: 4 x Screwdriver Bits