Grooved hex shank prevents slipping in drill chuck or bit extension. Double spurs scribe the outside of the hole which reduces "break out". Shorter length allows for access between studs & rafters or inside cabinets. Drills straight holes in tight areas. Contains 1/2-inch, 3/4-inch & 1-inch Diameter By 4-inchShort Length Wood Boring Bits.
In-Package Dimensions (inches)
Country of Origin: CN