M42 is a molybdenum series high-speed steel alloy with an additional 8 or 10 percent cobalt. It is widely used in metal manufacturing industries because of its superior red hardness as compared to more conventional high-speed steels.

M42 super high speed steel is a premium cobalt high speed steel with a chemical composition designed for high hardness and superior hot hardness. These properties make the steel an excellent choice for machining high-strength and pre-hardened steels, high-hardness alloys, and the difficult-to-machine, nonferrous super alloys used in the ...

BOSCH Cobalt M42 metal drill bits are engineered with upgraded M42 alloy, containing 8% cobalt. These hard-core Cobalt bits deliver 10x life vs. Standard bits, are jobber length and withstand high-heat applications. The thick web-helix design delivers fast material removal and increased stability. Bits that are 1/8 in.

(HSS Steel M42) 8% Cobalt tool bits are designed for machining work hardening alloys and other tough materials. They have increased water resistance and tool life. This improves performance and retention of the cutting edge. M42 steel composition makes for a good combination of toughness and hardness.

2023年5月23日 · M42 cobalt bits contain eight percent cobalt, making them exceptionally resistant to heat and wear. M42 cobalt drill bits feature a unique split-point design that allows for faster cutting and reduces the chance of the bit “walking” or skidding across the workpiece.

Bosch Cobalt M42 Drill Bit Set with Case provide great performance in stainless steel and can be used to drill cast iron, titanium and other hard metals.

M42 steel has another 8-10% cobalt added to the alloy for increased heat resistance, also called red hardness. The common chemical composition of M42 cobalt steel is 1.1% carbon, 8.25% cobalt, 9.5% molybdenum 3.9% chromium, 1.2% vanadium and 1.6% tungsten.

What Is M42 Cobalt Steel? M42 is a specific HSS alloy including 8% cobalt. Otherwise, it is very similar to other molybdenum-series high speed steels. It has become a go-to material for machining applications thanks to its extremely impressive performance. It is one of Griggs Steel ’s most popular alloys.

BOSCH CO14B 14-Piece Assorted Set with Included Case - Cobalt M42 Metal Drill Bits with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, and Light-Gauge Metal

Cobalt M42 drill bit – provides upgraded M42 cobalt jobber-length bits designed for durability, high heat resistance and hardened surface for stainless steel, cast iron, titanium, light-gauge metal and aluminum