●Material:Full metal casting structure of aluminum, iron and chrome vanadium steel provides good strength and durability ●90 Degree Handle Chuck:The drill attachment at 90 degree angles with 8mm shaft is suitable for many portable electric drills ●Jaw Chuck Range (Diameter):The tools chuck accepts standard 0.8-10mm/0.031-0.393in drill bits and holds a maximum 25N.m torque ●Simple to Operate:155mm/6.1in length metal handle for stable, fits in virtually any drill, air, electric, cordless etc ●Widely Application:8mm hex shank suits most standard drills, like: hand/power drills, electric drill, buffing attachments etc