8 different size: 9/23"(10mm), 9/19"(12mm), 5/9"(14mm), 7/11"(16mm), 5/7"(18mm), 11/14"(20mm), 13/15"(22mm), 63/64"(25mm).
Material: Auger drill bit made of High Carbon Steel, hardened and tempered for longer useful life.
Excellent craftsmanship: Designed for 4precision ground cutting edges and 4 flutes engineered to optimize performance, easy for chip removing.
With self feeding auger point, easy cutting of accurate diameter holes.Come with grooved hex shank, can be used in hand drills electric drills drill.
Available application: Woodworking drill bits ideal for making neat and clean holes into both hard wood and soft wood, plastic, etc.