Groove 6X Speedbor is six times faster than regular wood drill bits. The blades are fully hardened, which improves their durability and extends their lifespan. Thanks to the compact length, they're also great for working in tight spots. SIDE CUTTERS FOR WOOD - More precise hole with less tear-out SPIRAL TIP - Faster drilling with less effort CONICAL THREAD - Reduces friction. Tri-Flute structure removes chips effectively FULLY HARDENED - Increases durability1/4" QUICK CHANGE NECK - Fast and secure attachment