5PCS Countersink Drill Bit Set, Premium HSS Countersink Drill Bit with 82-Degree, 5 Flutes 1/4 Inch Quick-Change Hex Shank, 1/4 Inch to 3/4 Inch Size, Counter Sink Drill Bits for Wood, Metal, Plastic

Features: Premium Material: Crafted from high-speed steel (HSS), these bits offer exceptional durability and can effortlessly tackle wood and metal surfaces with precision and ease. Clean Countersink Holes: The precision-ground 5 flutes and cutting edges for a smooth and clean finish, reducing the need for additional sanding or finishing work. How to operate: 1.First, drill a suitable pilot hole for your screw with a drill bit (countersink drill bits cannot be used directly for drilling). 2.Install the countersink drill bit on the workbench for countersinking (please maintain concentricity, 90deg, during the countersinking process). 3. After countersinking, the hole will have a chamfered edge. 4.Screw the flathead screw into the hole to achieve a perfect smooth surface, or you can perfectly hide the flathead screw in the wooden product. Notes: 1.During the countersinking process, maintain 90deg and do not swing it. 2. When using a hand drill, please keep drilling at 90deg and apply a little pressure

Features

• [(Top Quality)] Our countersunk drill is made of high-quality M2 high-speed steel to ensure its high hardness and durability, providing excellent cutting ability
• [(1/4″ Hex Shank)] This set of countersink bits includes 5 different sizes – 1/4″(6 mm), 3/8″(10 mm), 1/2″(13 mm), 5/8″(16 mm), 3/4″(19 mm). These drill bit feature a 1/4″ hex shank, making them compatible with all types of drill bits and mold grinders
• [(Enhanced Efficiency)] With 5 flute design, countersink drill bits ensure efficient debris removal, resulting in smoother and cleaner countersinking(ensuring screws and fasteners sit flush), saving time and effort during your projects
• [(Widely Application)] Our metal countersink drill bit can be used for drilling holes in medium hardness stainless steel, copper, aluminum, plywood, softwood, hardwood and fiberglass plastics.Meet all your DIY needs
• [(Package Content)] The countersink drill bits set includes 5 sizes: 1/4″(6mm), 3/8″(10mm), 1/2″(13mm), 5/8″(16mm), 3/4″(19mm),all bit designed with 1/4″ hex shank