[8PCS wood plug cutter toolL drill] Included 4pcs standard plug cutters and 4pcs four-tooth chamfered cutters,can be used with bench drill, hand drill or other professional bench drilling machine. To avoid slipping or eccentricity during drilling, we recommend to use bench drill, or fix the drill [7PCS woodorking countersink drill bits] Made of high quality carbon steel with titanium coated, drilling length can be adjusted for various length screws,chamfer is 5 flutes that can discharge the wood more rapid in the process of using [6PCS 1/4 hex 5 flute 90 degree countersink drill bit] Made of standard high speed steel. With high frequency quenching for heat treatment, the HSS countersink bits have high toughness and hardness. Coated by titanium, the chamfer cutter kit is rust proof and has a long service life [3PCS step cone drill bit] Forged from titanium coated high speed steel, the hex shank of step drill bits adopts groove design, help the electric drill clamp it more firmly,suitable for drilling of thinner stainless steel, carbon steel, aluminium plate, iron plate and other materials [Applicabel] Included 1pcs Automatic center punch for marks workpiece with a dimple, creating a starting point that prevents screws and drills from wandering. And we provide different wood plug drill bits. You can use in any holes your need.