Drill pilot, clearance and countersink in one operation. Flip drill over for screwdriver function. Magnetic holder. Fits any 10mm or larger chuck. Includes 1 x quick-flip body, 3 x drill pilots and drivers for 6, 8 and 10 gauge screws. Drill pilot, clearance and countersink in one operation. Flip drill over for screwdriver function. Magnetic holder. Fits any 10mm or larger chuck. Includes 1 x quick-flip body, 3 x drill pilots and drivers for 6, 8 and 10 gauge screws.