The 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 also work great in tight spots. SIDE CUTTERS FOR WOOD - Cleaner hole with less tear-out SPIRAL TIP - Faster drilling with less effort TAPERED THREAD - Reduces friction. Tri-Flute design clears chips efficiently FULLY HARDENED - Increases durability 1/4" QUICK CHANGE HEX SHANK - Quick and secure attachment