2pcs 1/2" Reduced Shank Drill Bits 22mm (7/8") Black Oxide High Speed Steel (HSS) 9341 Twist Drill Bits for Aluminum Alloy Metal Plastic Wood

Key Features

• High-speed Steel Drill Bit Cutting Diameter 22mm / 0.87"; Shank Diameter 1/2"; Cutting Edge Length 55mm / 2.17"; Overall Length 150mm / 6"; Split Point 118 Degree; Hardened to HRC62-65. It combines hardness and toughness for wear resistance and durability.
• Black Oxide Finish Black oxide coating increases durability, corrosion resistance and lubricity, and helps to reduce friction and heat, extending the life of drill bit. Large spiral grooves facilitate the export of metal chips, saving time and effort in drilling operation.
• Reduced Shank Reduced shank drill bit expands the size range capacity of drill chucks. Allows you to efficiently drill larger diameter holes without exceeding the capacity of the chuck. Make sure the drill bit is tightened securely into the chuck.
• Wide Applications Can drill clean and accurate holes in A3 steel, 45# carbon steel, cast iron, aluminum alloy, brass, wood and plastic, good for a variety of applications. The sharp cutting edges provide neat and smooth cuts.
• Notices Use a marker or hole punch to mark the exact location, this will help guide your drilling accuracy. Start the drill at a slow speed and gradually increase to the desired drilling speed. Apply steady pressure to the drill. Keep the drill perpendicular to the work surface.

Product Description

About this item High-speed Steel Drill Bit: Cutting Diameter: 22mm / 0.87"; Shank Diameter: 1/2"; Cutting Edge Length: 55mm / 2.17"; Overall Length: 150mm / 6"; Split Point: 118 Degree; Hardened to: HRC62-65. It combines hardness and toughness for wear resistance and durability. Black Oxide Finish: Black oxide coating increases durability, corrosion resistance and lubricity, and helps to reduce friction and heat, extending the life of drill bit. Large spiral grooves facilitate the export of metal chips, saving time and effort in drilling operation. Reduced Shank: Reduced shank drill bit expands the size range capacity of drill chucks. Allows you to efficiently drill larger diameter holes without exceeding the capacity of the chuck. Make sure the drill bit is tightened securely into the chuck. Wide Applications: Can drill clean and accurate holes in A3 steel, 45# carbon steel, cast iron, aluminum alloy, brass, wood and plastic, good for a variety of applications. The sharp cutting edges provide neat and smooth cuts. Notices: Use a marker or hole punch to mark the exact location, this will help guide your drilling accuracy. Start the drill at a slow speed and gradually increase to the desired drilling speed. Apply steady pressure to the drill. Keep the drill perpendicular to the work surface. ›