Makita B-28531 Impact Gold Xtreme Torsion 1/4\" Hex Ultra Mag Bit Holder Impact Gold Xtreme Torsion Bits feature a unique design which focuses the forces exerted on a regular screw bit away from the tip, meaning less chance of breakage. Impact Gold Xtreme Torsion Bits can last up to 10x longer than a regular screw bit. An Impact Gold Xtreme Torsion Bit can last up to 15x longer than a regular bit when coupled with a Torsion holder such as this one. FEATURES Ultra-Mag (Ultra-Magnetic) collar holds screw securely on the bit holder for easy and convenient one handed use 71mm long holder 1/4\" hex holder suitable for all 1/4\" hex bits 1/4\" hex shank for use in power drills, screwdrivers and impact drivers For best performance, use with Makita Impact Gold Xtreme Torsion Bits SPECIFICATION Pack Qty: 1 Length: 71 mm Holder: 1/4\" Hex