Description: _x000D_ This set is a necessary tool set to make a countersink or chamfer. In the process of using, they can discharge wood sawdust more rapidly and smoothly, and drill a smooth countersink for screws or nuts. With cone shaped bit, drilling is more convenient and faster. It is suitable for drilling on hard wood or any wooden products. _x000D_ _x000D_ _x000D_ Features: _x000D_ Drill bit is made of titanium coating HSS and black chamfer part is steel, high hardness and wearable. _x000D_ Drilling bit length can be adjusted for various length simply using the L-wrench. _x000D_ 5 pieces set includes bits for drilling holes for different sizes of screws. _x000D_ _x000D_ Can discharge wood sawdust more rapidly and smoothly in the process of drilling._x000D_ _x000D_ It is suitable for drilling on hard wood or any wooden products. _x000D_ _x000D_ Specifications: _x000D_ Drill Material: Titanium Coating HSS 4241_x000D_ _x000D_ Black Chamfer Body Material: Steel 45 _x000D_ Round Shank: 1/4" _x000D_ _x000D_ Dimension: _x000D_ Chamfer Part Drill Bit _x000D_ 6# 2.38mm_x000D_ 8# 2.78mm_x000D_ 10# 3.175mm_x000D_ 12# 3.56mm_x000D_ _x000D_ 14# 3.97mm _x000D_ Weight: 70g(approx.) _x000D_ _x000D_ _x000D_ Package Includes: _x000D_ 5 x Woodworking Kits_x000D_ 1 x L-wrench