3 x 1/4 inch hex shank magnetic drill bit seat extension 50 100 150 quick release seat extension kit for screw nut hand drive

3 x 1/4 inch hex shank magnetic drill bit seat extension 50 100 150 quick release seat extension kit for screw nut hand drive

• Length: 2 inches (50 mm), 4 inches (100 mm), 6 inches (150 mM), extendable with all kinds of screwdriver heads, screwdriver head to convert use.
• Made of chrome vanadium (CR - V) steel, it is heat treated for high hardness, wear resistance, durability and long service life.
• Only the bottom of the hole is magnetic, the hex shank is not magnetic! Only suitable for single head drills.
• The 1/4 inch hex shank fits easily into electric screwdrivers, drill bits and hand screwdrivers to expand a variety of screwdriver heads, screwdriver head conversion uses.
• Ideal for drills, screwdrivers, batch heads and other transfer tools. Ideal for replacing sleeves and joints, extending links.