Description:

Simple UseIn one step, you can drill, countersink and counter bore the pilot holes. Drill bits sizes: 3mm, 4mm, 5mm, 6mm.. Unique DesignThree-Pointed design can quickly and accurately drill a smooth hole. Five-edged chamfer design will fast discharge chips from the hole on both sides automatically.. User-friendly DesignUse the hex key to remove five-bevel chamfer or adjust counter sleeve depth and drill depth for screws of various lengths.. Extremely VersatileThe Countersink Drill Bit Set is includes 1 piece of hex key and 4 pieces of countersink drill bit in 4 different sizes to satisfy all you demand.. MultipurposePerfect for Granite, tile, glass, ceramic, vitrified brick etc. Suitable for bench drill, hand drill and conventional electric drill..