Koken 1/2" Dr Attack Driver Rubber Grip Handle - 6pc #2-3 Phillips, 9-11mm Flat Oiling Equipment or putting in a long

or putting in a long day on the worksite

Bottom surface of the base is hardened

2041-016mm Nail Buster Auger Bit 460mm Hex Cuts Mild Steel Nails

000 hours under normal use

Koken 1/2" Dr Attack Driver Rubber Grip Handle - 6pc #2-3 Phillips, 9-11mm Flat Oiling Equipment or putting in a longAG112A Attack Driver Rubber Grip Handle 6pc 1 2"Dr Includes #2 3 Ph 9 11mm Flat Bits & HolderSpecial heat treatment is applied on the body Hardness of striking part is slightly softer to prevent cracks On the other hand, cam part converts the striking power to twisted by striking with a hammer, therefore this part is finished with higher hardness to improve anti wear Stronger spring is adapted to convert the striking power efficiently to twisting