ITEM NAME:Replacement 8mm Pilot Diameter 11 teeth Design Metal Drill Chuck Key U7G1 Replacement 8mm Pilot Diameter 11 teeth Design Metal Drill Chuck Key U7G1 A chuck key is required to achieve the required torque when fixing and removing the jaws of a chuck. Perfect for fixing and removing the jaws of a chuck. Product name: Drill chuck key Spigot diameter: 8 mm Gear diameter: 16 mm Shaft diameter: 9 mm Dimensions: 91 x 49 x 21 mm (L x W x D) Number of teeth: 11 Color: black / orange Material: metal, rubber Net weight: 72g Package content: 1x chuck key Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/-1-3cm..A chuck key is required to achieve the required torque when fixing and removing the jaws of a chuck. Number of teeth: 11. Perfect for fixing and removing the jaws of a chuck.