The DeWalt EXTREME® Tri Flute Bit 3 Piece Set is designed with 3 cutting edges to allow for up to 6x faster cutting combined with tri-flute design for optimum chip removal. The 3 cutting spurs allow for cleaner faster holes and extended drilling life The full screw tip allows the bit to self-feed for ease of use and pull through. The quick-change shank fits standard Quick-Change extensions and 1/4 / 6mm hex bit adaptors and also prevents spinning. Sizes: 16 20 & 25mm. PTDDEWDT90237QZ"
