Turbo Max Point HSS Drill Bit , Hss Cobalt Drill Bits For Metal

Description

1 Name: HSS Drill Bit for Metal
2 Material: HSS / HSS Cobalt
3 Standard: DIN338
4 Point Type: Turbo Max Point (
5 Surface Finish: Black & Gold (Bright, Black Oxide, Amber Color, Titanium, Black & Bright are Available)



What is HSS Drill Bit?

HSS drill bits are made by mixing these materials 0.85% C; 4% Cr; 5% Mo; 6% W; 2% V.
According to its material mixing proportion, strength has varied. M1, M2, M7, M35, M42, and
M50 have different strengths and resistance HSS. HSS is used for drill bits, cutting tools, knives,
and many tough tools.

• 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 Design for Cutting through Stainless Steel,Hard Metals,Aluminum,Plastic,and Hard Wood.
• 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 through the Material with a Blunt Drill Bit.
• 19Pcs 135 Degree Split Point Drill Bits Includes :1mm(length:3.4cm) 1.5mm 2mm 2.5mm 3mm 3.5mm 4mm 4.5mm 5mm(length:8.5cm) 5.5mm 6mm(length:9cm) 6.5mm 7mm 7.5mm 8mm(length:11.5cm) 8.5mm 9mm 9.5mm 10mm(length:13cm) [DIA 0.5mm Increments] .

Why choose STARRY 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 ℃.
• 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).

Packing: