Metric M42 8% Cobalt Drill Bits for Stainless Steel and Hard Metal (5.5mm x 4... For Sale

Product description STROTON Metric M42 8% Cobalt Drill Bits for Stainless Steel and Hard Metal Why choose STROTON cobalt drill bits?

The research shows that HSS with cobalt has a higher temperature resistance and Red hardness, a greater wear resistance(Hardness) and a higher heat treat response than HSS without cobalt .

• Red hardness, it causes the hardened steel to have an ability to maintain hardness at approximately 860-880 ℃.
• 68-70 HRC,it means that the drill bits has 3X cutting ability and 2X durability.
• This drill bits set is made of Premium Cobalt (80,000 dollars per ton).

The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. aplus content video M42 Cobalt 8% Alloy

• This drill bits set is made of Premium Cobalt (80,000 dollars per ton).
• 8% Cobalt gives high-speed steel more heat and wear resistance.

3 Steps (3X-5X Efficiency)

• 3 Steps design tip starts drilling immediately with less force and eliminates \"walking\" across the work surface.

Pro Bits for Stainless Steel

• The high HRC ,Red hardness are suitable for drilling Stainless Steel and Hard Metals.

Ture Cobalt Steel

• The STROTON cobalt bits definitely have More Cobalt in them than the \"Cobalt\" bits that HF sells--which are just Cobalt coated or Cobalt tipped.

Material 8% Cobalt High Speed Steel Ideal for Stainless Steel,Hard Metals,Aluminum,Plastic and Hardwood Shank Round Shank Edge Design 3 Steps , 135° , Split Point HRC 68-70 Tips for drilling Steel and Hard metal.

Controling the drill speed from 200 to 1000 RPM would make it easier for you to drill holes on stainless steel.

• A high RPM does not improve drilling efficiency, but rather increases the heat between the bit and the workpiece, which may cause the bit to soften and the workpiece to harden.
• Drill

  Using cutting fluid will make the bit last longer.

  • Add stainless steel tapping oil or engine oil to prevent the stainless steel from overheating and forming a very hard oxide layer.
  • It also works adding some vinegar,soy sauce or water if you don\'t have engine oil.
  STROTON Ture Cobalt Steel Products. Add to Cart Add to Cart Customer Reviews 4.4 out of 5 stars 4,755 4.5 out of 5 stars 1,188 4.4 out of 5 stars 952 4.5 out of 5 stars 255 4.5 out of 5 stars 552 4.5 out of 5 stars 700 Price — $28.49$28.49 — $32.89$32.89 — — Cobalt M42 8% Cobalt 5% Cobalt 5% Cobalt 5% Cobalt 5% Cobalt M42 8% Cobalt Measurement System Metric Metric SAE (inch size) SAE (inch size) SAE (inch size) Metric Ideal for Stainless Steel,Hard Metal Stainless Steel,Hard Metal Stainless Steel,Hard Metal Stainless Steel,Hard Metal Stainless Steel,Hard Metal Stainless Steel,Hard Metal Brand STROTON STROTON STROTON STROTON STROTON STROTON Type Right Hand Right Hand Right Hand Right Hand Right Hand Right Hand
  • Premium M42 8% Cobalt Steel ,68-70 HRC (Rockwell Hardness Scale) ,Usually Give the Best Heat,Wear and Chip Resistance and Long Tool Life.
  • 3 Steps Desigh for Cutting through Stainless Steel,Hard Metals,Aluminum,Plastic and Hardwood.
  • This Cobalt Drill Bit is Typically Capable of Running Three to Five Times Faster.Despite the Higher Price,the Cost Per Hole When Using Cobalt Drill Bit Will be the Lowest,Since It Can Produce So Many More Holes.
  • The Sufficiently Sharp Bit Edge Can Cut the Metal Material into Long Strips of Iron Chips rather than Slowly Grinding Throng the Material with a Blunt Drill Bit.
  • Includes :M42 Cobalt drill bit 5.5mm x 4pcs ,135 Degree Split Point