Certification : CEDIY Supplies : ELECTRICALis_customized : Yes2-13mm Keyless Drill Chuck with SDS Tool AdaptorSpecification:MaterialCarbon steel,claws of tungsten steelColorBlackClamping range2-13MMMount type20unf#1 Size ofKeyless Chuck62 x 43mm#2 Size of Round handle73 x 10mmFeatures:- Unique patented locking function, breaking the traditional locking method, after having ratchet locking pieces mounted on the rear cover,the locking perimeter longer, more effectively prevent loose off at work, so that the cartridge clip holding the tool more reliable.- Good metal texture, comfortable coat surface.- Unique thrust bearing torque easy to handle applied translate into greater clamping force.Package Included:1x keyless impact drill chuck/Connecting rod(Please note that the package includes one type only. The chuck and the rod are sold separated.)