25 PCS HSS Cobalt Left Hand Drill Bit Set for Metal

This left-hand drill bit set has a 135 degree split point for fast penetration. The bits are made of high speed steel with a titanium coating to fight corrosion. Use these bits with a reversible drill (available separately) to remove studs, screws and bolts without damaging threads in the hole. The left-hand drill bit set comes in a steel storage case for portability.



1.Material:HSS4341,6542, 9341, M35, M42
2.Point Angle: 118 degree or 135 degree Split Point
3.Shank Type: Cylinder
4.Surface finshing: black, white,black&white, Amber, Tin coated
5.Processing: Fully ground 
6.Diameter: 1/16 in., 5/64 in., 3/32 in., 7/64 in., 1/8 in., 9/64 in., 5/32 in., 11/64 in., 3/16 in., 13/64 in., 7/32 in., 15/64 in., 1/4 in.
 
135 degree split point for fast penetration
High speed steel
Double flute
Steel storage case
Model of Making: Full Ground Or Roll Forged
Material: High Speed Steel or S2

H.S.S Grade	Chemical Composition(%)
4241	W:1.50-2.50;  Mo:0.60-1.20;  Cr:3.80-4.40;  V:0.50-0.70
4341	W:3.50-4.50;  Mo:2.50-3.50;  Cr:.3.80-4.40;  V:1.20-1.80
99341	W:8.50-9.50;  Mo:2.70-3.30;  Cr:.3.80-4.40;  V:1.30-1.70
6542(M2)	W:5.50-6.75;  Mo:4.50-5.50;  Cr:.3.80-4.40;  V:1.75-2.20
M35	W:6.00-6.70;  Mo:4.70-5.20;  Cr:.3.80-4.50;  V:1.70-2.00;  Co:4.50-5.50
M42	W:1.15-1.85;  Mo:9.00-10.0;  Cr:.3.50-4.25;  V:0.95-1.35;  Co:7.75-8.75

Suitable materials: wood, aluminum, plastic, thin metal, etc.

Features:

Cylindric short, right-hand cutting

High security against fracture, high precision of concentric running

Well suitable for all normal drilling work

Split-Point angle: 118° or 135°

Extra introductions:

H.S.S.-TIN: The metal drill bit for extreme applications in trade and industry. The titanium nitride coating causes less friction, therefore providing a rapid drilling rate. When used with cooling, a max. 6 times longer lifetime is achieved.

H.S.S.-CO: The expert for stainless steel. The cobalt alloy ensures heat resistance and a high resistance to wear. Ideal for precise drilling in corroisin-resistant and heat-resistant steel with a tensile strength of up to 1000N/mm2.

Split Point Angle 135°: Up to 40% faster drilling rate than comparable drill bits with 118 ° drill bit tip without split point Pilot drilling without pre-pumping.


 

WIDELY USED
Household, Industrial Use

COMPANY PROFILE

Danyang Daming Import & Export Co., Ltd. is one of the professional saw blades and drill bits suppliers in China. We specialize in all kinds of tools such as HSS twist drill bits, electric hammer drill bits, masonry drill bits, woodworking drill bits, HSS hole saws, HSS taps, TCT saw blades, diamond saw blades, diamond core drills and some other power tool accessories and parts. We are located in Danyang City, Jiangsu Province, China, which provides easy access to air, water and land transportation. 

Based on rich experience, advanced technology and professional skills, our products can always maintain the first rate quality as well as competitive prices. In recent years, our products have sold well in domestic and foreign markets, well received by customers in America, Europe, the Middle East, Indonesia and other countries and regions. 

OUR CUSTOMERS PRAISE

For more information, please feel free to contact us now. We will reply to you within 1 working day. Thank you for your interest!