ITEM NAME:6Pcs/Set Countersink Drill Bits Center Punch Tool Sets Automatic Punch Hex N5F9 6Pcs/Set Countersink Drill Bits Center Punch Tool Sets Automatic Punch Hex N5F9 1.Made of advanced 45# standard high-carbon steel with super-hard titanium plated to prevent rust and increase the surface hardness. 2.Five-blade chamfering with a groove, easier to discharge debris and the High Carbon Steel Drill Bit not easy to blunt. 3. Standard 1/4'' Hex Shank and 6 pcs a variety of specifications drill bit. 4.The whole Drill Bits is using high-frequency quenching for heat treatment, high-density grinding, with titanium to prevent rust. High Hardness, Good Toughness, High Concentricity. 5.used for wood openings, reaming, chamfering, screw head and so on. Also applies to MDF, plywood, acrylic, PVC board and soft metal such as aluminum, copper and so on. Material:High speed steel Color:Gold Size:As shown Package Contents: 1 * 6mm Drill 1 * 8mm Drill 1 * 9mm Drill 1 * 12mm Drill 1 * 16mm Drill 1 * 19mm Drill 1 * Automatic Center Punch.High Hardness, Good Toughness, High Concentricity. Standard 1/4" Hex Shank and 6 pcs a variety of specifications drill bit. 1 Automatic Center Punch. 1 6mm Drill. 1 8mm Drill. 1 9mm Drill. 1 12mm Drill.
