4 SIZES OF HSS DRILL BITS SET with numbers on the drill bits for easy recognition can meet your different needs.
EXCELLENT QUALITY: The countersink drill bit is made of high speed steel material with titanium nitrate coating. High hardness, durable and offer superior cutting power. Detachable or adjustable woodworking and five bevel chamfers.
REMOVABLE and ADJUSTABLE:The countersunk bit and five-slot groove can be easily adjusted or removed using the hex wrench combination.Woodworking chamfer tool tricuspid nibs manufactured using silent, compared to ordinary twist drill, the center of sharp edge positioning precision drilling high efficiency.
WIDE APPLICABILITY: The woodworking countersink drill bit set is perfect for wood, fiberboard, particle board, plywood, plastic, PVC, rubber, etc. Suitable for bench drills, hand drills and conventional drills.