CoCud Solid Carbide Drill Bits, 4.15mm Diameter, K35 Tungsten Carbide Precision Short Length Twist Drill Bits - (Applications: for Stainless Steel Alloy Metal), 2-Pieces

• ★ Carbide Drill Bit Size --- Drilling diameter: 4.15mm / 0.163"; tool flute length: 23mm / 0.91"; shank diameter: 4.15mm / 0.163"; overall length: 45mm / 1.77"; tool flute type: spiral; cutting hardness: up to HRC50; processing technology: fine grinding
• ★ Wide Applications --- Suitable for drilling stainless steel, alloy steel, carbon steel, die steel, tool steel, copper, hard plastic and other materials below HRC50. Widely used in maintenance departments, machine shops, and other industries. Use on machining centers, CNC lathes, drill presses and bench drills.
• ★ Spiral Flutes --- The spiral groove facilitates the export of metal chips, which saves time and effort in operation. Sharp flutes provide fast, neat and smooth cuts. Provides faster cutting speeds than other substrates and is harder but more brittle. Be careful and control your CNC speed.
• ★ K35 Tungsten Carbide --- It is a micro grain tungsten-cobalt alloy with an average cobalt content of 10%. The solid carbide drill bits has high hardness (91.5HRA), wear resistance, corrosion resistance, high strength, bending resistance and high heat resistance.
• ★ Useful Tips --- Keep cool and gentle when using. Not recommended for use with a hand drill (easy to shake, poor stability). If there is a problem with chip evacuation, go back in time and remove the chips. Drill metal with high hardness, the rotational speed should be slower than normal drilling.

Attributes: * Drilling Diameter: 4.15mm / 0.163" * Tool Flute Length: 23mm / 0.91" * Shank Diameter: 4.15mm / 0.163" * Overall Length: 45mm / 1.77" * Material: K35 Tungsten Carbide * Average Cobalt Content: 10% * Tool Flute Type: Spiral * Cutting Hardness: up to HRC50 * Processing Technology: Fine Grinding What Is Included: * 2 Pieces x Carbide Drill Bits Applications & Features: --- Suitable for drilling stainless steel, alloy steel, carbon steel, die steel, tool steel, copper, hard plastic and other materials below HRC50. Widely used in maintenance departments, machine shops, and other industries. Use on machining centers, CNC lathes, drill presses and bench drills. The correct lubricant can facilitate cutting or cooling, make cutting easier, and improve dimensional accuracy and extend tool life --- K35 tungsten carbide is a micro grain tungsten-cobalt alloy with an average cobalt content of 10%. The solid carbide drill bits has high hardness (91.5HRA), wear resistance, corrosion resistance, high strength, good bending resistance and high heat resistance. Provides faster cutting speeds than other substrates and is harder but more brittle. Carbide material with good drilling properties ensures high working efficiency. Sharp spiral flutes provide fast, neat and smooth cuts. The spiral groove facilitates the export of metal chips, which saves time and effort in operation. Useful Tips: --- Keep cool and gentle when using. Not recommended for use with a hand drill (easy to shake, poor stability). If there is a problem with chip evacuation, go back in time and remove the chips. Be careful and control your CNC speed. Drill metal with high hardness, the rotational speed should be slower than normal drilling.