Description – Double ended design screwdriver bits with detachable magnetic ring. – 1/4″ hex shank. – Total Length: Approx 65mm. – Suitable for plasterboard screws locating and as drywall screws. – Depth-stop design to limit screw penetration and damage to surfaces. – Made of wear-resistant D1 steel. – HRC65 high temperature resistant, high hardness, anti-impact, wear resistant, rustproof, solid and durable. – These bits help you fix the screw exactly in place without worrying about wobbling or misdirection. – Magnetic collar design limits the penetration of screws below the surface and prevents damage to walls or boards. – The magnetic and non-slip design allows the screw to attach to the bit without falling off. – Suitable for gypsum board, woodworking, boards, dry wall. – Widely compatible with electric screwdrivers, manual screwdrivers, electric drills, hand drills, etc. – Package has ten 65mm screwdriver bits with hexagonal shanks and each with a magnetic sleeve.