Description: Classic key three-jaw design, quick Change and an easy lock. Easily and securely install a wide range of drill bits with 2-13mm shanks. Unique patented locking function, conveniently tighten with one hand, breaking the traditional locking methods. Easily convert your rotary hammer/impact wrench/impact Screwdriver into a drill rather than spending money having multiple tools. Also turns impact wrench to perform drilling functions as well. Warning: The product can NOT be used counterclockwise! NOT suitable for impact drivers or applications involving high torque load. Specification: Color: As Shown. Material: Metal. 13 mm keyless chuc-k [1/2 "x 20 UNF] Length: approx. 63mm Chuc-k capacity: 2mm-13mm Thread: 1/2 "x 20 UNF 1/4 HEX Shank [1/2 "x 20 UNF] Recording: HEX, 16.8 mm Thread: 1/2 "x 20 UNF Length: 51.5 mm Screw length: 25 mm Screw thread: M6 left Weight: 32 gr Drive: 1/4 "external hexagon drive 3/8 "SDS Plus Shank [1/2" x 20 UNF] Recording: 16.6 mm Thread: 1/2 "x 20 UNF Length: 65.5 mm Screw length: 22 mm Screw thread: M6 left Weight: 43 gr Drive: 3/8 "SDS-Plus 1/2 "Socket Square Converter [1/2" x 20 UNF] Recording: 16.6 mm Thread: 1/2 "x 20 UNF Length: 35.0mm Screw length: 12 mm Screw thread: M6 left Drive: 1/2 "square socket Note: There might be a bit color distortions due to different computer resolutions. There might be a slight errors due to different hand measurement. Package Includes: 1 x 1/2" Socket Square Converter 1 x 3/8" SDS Plus Shank 1 x 1/4" Hex Shank 1 x 2-13mm Drill Chuc-k