General description Sealey AK8191 Left-Hand Spiral Drill Bit Set includes 25 pieces designed specifically for the extraction of snapped studs, screws, or fixings. The left-hand drill bits feature a 118° point tip that allows for quick engagement with the workpiece, minimizing the need for a center mark. Technical specifications Model No.: AK8191 Material: 4241 HSS steel Sizes: Ø1-13mm in 0.5mm increments Storage Supplied in a powder-coated metal storage case with internal organizers