M42 Cobalt HSS Drill Bit

Product Detail:

1. JS-TOOLS M42 Cobalt HSS drill bits provide superior performance in stainless steel and can be used to drill cast iron, titanium and other hard or abrasive metals. All our HSS drill bits are manufactured in accordance with DIN 338. Also, can fast start due to sharp 135-degree tip angle.

2. Thick web helix delivers fast material removal combined with increased durability for maximum efficiency and performance. Durable, high-quality M42 steel drill bit containing 8% cobalt – for fast and precise results even in challenging applications. Much more robust and longer-lasting thanks to the cobalt content.

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Application

● Drilling holes for hard steel and stainless steel.

● Drilling in stainless steel, high-tensile steel, high-temperature alloys, heat-treated materials.

● Drilling in cast iron, titanium and other hard or abrasive metals.

● Drilling holes for installing all kinds of accessories.

Technical Data

● Material: M42

● Hardness: HRC 67-70

● Production Process: Rolled forged – Cheaper price, Fully ground – High quality.

● Connection End: Full Shank, Smooth Shank.

● Surface Color: Black, white, Titanium-coated, coffee, black bronze.

● Diameter: 1-16 mm (Normal diameter) – It can be customized.

Product Advantages

1. Application- suitable for drilling kinds of materials, iron, copper, bronze, cast iron and hard plastics.

2. Higher Tempering Resistant- bits can maintain a high hardness at high temperatures for an extended period of time.

Size

Description	Size
HSS Twist Drill Bit	1
	1.5
	2
	2.5
	3
	3.5
	4
	4.5
	5
	5.5
	6
	6.5
	7
	7.5
	8
	8.5
	9
	10
	11
	12
	13
	14
	15
	16

*1) unit: mm

*2) other sizes free to consult

Packing

1 x Drill Bit / Plastic Tube

Packing can also be customized according to your requirements. Welcome to contact.

Instructions for Use

1. The drill bit should be perpendicular to the workpiece when used. Non-vertical use may cause the drill bit to break.

2. Using a drill press with sufficient power will make drilling easier.

3. Do not use the drill bit on a percussion drill.

4. This drill bit cannot be used on glass, walls and concrete.

5. Control 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.

6. 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.

Wood	Very Applicable	Frequently used
Plastic	Very Applicable	Frequently used
Soft Metal	Very Applicable	Frequently used
Hard Metal	Very Applicable	Frequently used
Hard Steel	Very Applicable	Frequently used
Stainless Steel	Very Applicable	Frequently used
Concrete	Not Applicable	Not used
Stone	Not Applicable	Not used
Rock	Not Applicable	Not used
Masonry	Not Applicable	Not used
Hard Masonry	Not Applicable	Not used