High Quality HSS M42 Cobalt 8% Twist Drill Bit for Hard Stainless Steel

• Customized: Customized
• Standard: AISI, DIN338, Jobber Length
• Length: Jobber-length
• Type: Twist Drill Bit
• Material: HSS 8%Cobalt
• Usage: Metal Drilling
• Model NO.: PFT200
• Point Angle: 135 Degree Regular Point
• Surface: Black and Gold
• Size: 1-20mm, 1/16"-1", #1-#90, a-Z
• Processing: Fully Ground
• Shank: Parallel Shank
• Helix Angle: Type N Spiral Flute Right Hand
• Transport Package: Metal Box
• Specification: TUV, CE, ISO
• Trademark: Perfect
• Origin: Jiangsu Province, China
• HS Code: 8207509000
• Production Capacity: 5000PCS/ Per Day

Product Description

Why choose "Perfect" 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 ºC.

Higher Tempering resistance,it means to maintain a high hardness at high temperatures for an extended period of time.

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).

M42 Cobalt 8% Alloy

This drill bits is made of Premium Cobalt (80,000 dollars per ton).

Holds up better than generic high-speed steel,8% Cobalt gives high-speed steel more heat and wear resistance.

Features & details

Premium M42 8% Cobalt Steel ,68-70 HRC (Rockwell Hardness Scale) ,Usually Give the Best Heat,Wear and Chip Resistance and Long Tool Life.

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.

Product Description:
 

Product Name	High Quality HSS M42 Cobalt 8%  Twist Drill Bit for Hard Stainless Steel
Material	HSS 8% Cobalt(  HSS 5%Co, HSS M2 is also available)
Process	Fully Ground   (Rolled & Polished, Rolled, Milled are Available)
Standard	DIN338               (Stub DIN1897, Long DIN340, Extra Long DIN1869,                                Blacksmith Reduced Shank 10mm, 13mm, DIN345 Taper Shank are Available)   Jobber Length  (Stub Screw Machine Length, Long Taper Length, Airctraft Extensoin,                              Extra Long 12", 18", 24", Silver & Deming 1/2" Reduced Shank are Available)
Size	1 - 20mm, 1/16" - 1" , A - Z, 1# - 90#
Point Type	135 Degree Split Point  (118 Degree Regular Point, Turbo Max Point, Pilot Point are Available)
Shank Type	Straight Shank  (Hex Shank, Tri-Flats Shank, Double R Hex Shank, Reduced Shank,                               Threaded Hex Shank, Taper Shank are Available)
Helix Angle	Regular Spiral Type N  (Slow Spiral Type H, Fast Spiral Type W, Left Hand Spiral are Available)
Web & Flute Type	Regular Web & Flute  (Thick Web with Parabolic Flute, Heavy Duty Web with Regular Flute are Available)
Surface Finish	Titanium  (Bright, Black Oxide, Amber Color, Black & Gold, Black & Bright are Available)
Package	10/5 Pcs in PVC Pouch, Plastic Box, Individually in Skin Card, Double Blister, Clamshell.
Features	Manufactured from M42 high speed steel contains 8% cobalt increasing hot hardness. Cobalt drills require rigidly held positive feed drilling equipment Recommended: use to drill hard tough metals, free machining stainless steel, titanium alloys and certain abrasive plastics. Precision ground metric drill bits made from M42 high speed steel bars with 8% cobalt achieving a hardness of some 63.5 - 65 Rockwell. The Cobalt allows the drill bits to hold their hardness at higher temperatures. Intended for use on alloy and hardened steels, cast iron, titanium and many other really tough, hard-to-drill, materials such as stainless steel. Perfect for home and production use. Available in a range of metric sizes. It is advisable to use coolant when appropriate. 135 Degrees tip angle.

Product sizes:




HSS Drill Bit: