10PCS High Speed Steel Double Head Short Body Torsion Drill Bit Set 1/8 Inch M35 High Speed Steel Twist Drill with Cobalt for Chemical Metal Stainless Steel Cast Iron Plastic and Wood
10 pieces of 1/8 inch cobalt drill bits: 10 pieces of 1/8 inch (drill diameter) x 5/8 inch (flute length) x 2 inch (overall length) metal drill bits. This drill fits most drills on the market today.
M35 cobalt HSS: The industrial grade M35 HSS drill set is harder than the 4241 HSS used in other similar drill sets. These bits also contain 5 per cent cobalt for increased wear resistance and durability.
Fully milled process and 135 degree split point: Fully ground helical flute design quickly removes particles and reduces friction and heat for faster, cooler drilling performance.135 degree split point and straight shank prevents walking for more accurate, faster drilling. No centre punch required.
Multiple applications: ideal for cutting hard metals such as stainless steel, steel, sheet metal and cast iron as well as plastics, aluminium alloys, wood and other softer metals. Drill holes with speed, pressure and heat control.
Cobalt drills are not made from pure cobalt, but are alloys of steel that contain a percentage of cobalt. 5 per cent of the alloy is known as the M35 grade. Cobalt increases the strength of steel and makes it more heat resistant. This is an important factor in drilling hard materials because metal-to-metal friction can generate high temperatures that can damage the material or the drill bit.
Description
Cobalt drills are not made from pure cobalt, but are alloys of steel that contain a percentage of cobalt. 5 per cent of the alloy is known as the M35 grade. Cobalt increases the strength of steel and makes it more heat resistant. This is an important factor in drilling hard materials because metal-to-metal friction creates high temperatures that can damage the material or the drill bit.
Product name: High speed steel cobalt double head drill bits
Angle of cutting point: 135 degrees
Angle point type: split type
Flute type: Ordinary spiral flute
Finish: Ashes gold colour
Application: Drilling holes in steel, metal, iron, copper, aluminium, plastic
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