Features: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:Brand new and high quality. Color:As the pictures show. Material: HSS Drill 4241. Chamfer drill body material: steel 45. Dia. of Chamfer: 15.8mm. Shank: 1/4 hex shank.
Dimension:3mm x 60mm(L). 4mm x 75mm(L). 5mm x 85mm(L). 6mm x 90mm(L).
Package Included:4 x Woodworking chamfers 1 x Hex Shank
NO Retail Box. Packed Safely in Bubble Bag. P057161