Four piece set includes bits for drilling pilot holes for screw sizes 3mm, 4mm, 5mm, 6mm. Special designed steel counter sleeve countersinks or counter bores pilot hole. Adjustable counter sleeve depth with wrench. Drill and countersink for wood screws without changing bits. Drilling length can be adjusted for various length screws simply by loosening and tightening the setscrew. Chamfer is 5 flutes, In the process of using, can discharge the wood more rapid, sink hole disposable drilled smooth, screw cap perfect embedded in the surface of workpiece. Specifications: Color: As the pictures show Material: HSS Drill 4241 Black chamfer drill body material: steel #45 Dimension: 3mm x 60mm(L) 4mm x 75mm(L) 5mm x 85mm(L) 6mm x 93mm(L) Dia. of Chamfer: 15.8mm Shank: 1/4 hex shank. Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand, Thank you
8pcs RUIMI Socket Adapter Hex sizes included 1/2" / 3/8" / 1/4" drive and 8 kinds of drive size
Suitable for quick change 1/4" chuck systems or directly into drill chuck. Change your hand socket set into a driven socket set.
Material: chrome vanadium steel. CR-V
Suitable for a screwdriver or electric screwdriver handle tools (hexagonal hole or three-jaw chuck can) drive sleeve and after use can be installed on the size of the original hexagonal polygons converted to square head size, which can be used to install the sleeve is a good accessory to convert.
Chrome vanadium steel suitable for heavy duty impact drivers.Spring loaded ball bearing on head holds sockets securely. This set is perfect for your impact driver or drill, and allows you to replace your ratchet with a power tool.