Introducing our premium large drill bit set, meticulously crafted to meet the demanding needs of professionals and DIY enthusiasts alike. This comprehensive set features an impressive array of high-quality drill bits, ranging from 1/16" to 1/2" in size, ensuring compatibility with various drilling applications. Each bit is forged from durable high-speed steel, guaranteeing exceptional strength and longevity. The precision-engineered cutting edges provide clean and accurate holes in wood, metal, plastic, and more. With a convenient storage case included, organizing and accessing your drill bits has never been easier. Upgrade your drilling arsenal with our large drill bit set and experience unmatched performance and reliability.
Step Drill Bit Titanium Coated Double Cutting Blades Transport Package on Request
Specification all sizes are available
Q&A: 1.Are you manufacturer? Do you have factory? We are Professional manufacturer ,we have more than 5 years experience in this field. 2.Does free shipping is possible? We don't offer free shipping service, but we will give you some discount if you buy large quantity products. 3.Can you send products to our Forwarder in China? Yes, if you have forwarder in China, i will glad to send products to him/her. 4.Do you make OEM? Yes, we do. We have laser machine, can laser your logo and sizes on the body of milling cutter, also can print labels. 5.How about the delivery time? According to the sizes and quantity, delivery time is different. Usually be 5~10 days. We can tell you exact inventory state if you need. 6.Can you produce carbide Special Tool ? Yes We can. From 2013 year. Our factory main market is from standard end mills to special tools. Special tool according your drawing and sample. 
Material | Component (%) |
| HSS 4241 | C (0.9~1.0); Si(1.0~1.3); Mn(0.25~0.4); P(0~0.035); S(0~0.009);
Cr(3.8~4.2); Mo(0.55~0.85); W(1.6~2.0); V (0.4~0.65); Co(0) |
| HSS 4341 | C (0.83~0.93); Si(0.2~0.4); Mn(0.2~0.4); P(0~0.03); S(0~0.009);
Cr(3.8~4.4); Mo(2.5~3.5); W(3.5~4.5); V (1.2~1.8); Co(0) |
| HSS 6542 (M2) | C (0.8~0.9); Si(0.2~0.45); Mn(0.15~0.4); P(0~0.03); S(0~0.009);
Cr(3.8~4.4); Mo(4.6~4.9); W(5.6~5.9); V(1.8~2.0); Co(0) |
| HSS 9341 | C (0.77~0.87); Si(0.2~0.4); Mn(0.2~0.4); P(0~0.03); S(0~0.009);
Cr(3.8~4.4); Mo(2.7~3.3); W(8.5~9.5); V(1.3~1.7); Co(0) |
| HSS M35 (Co5%) | C (0.8~0.9); Si(0.2~0.45); Mn(0.15~0.4); P(0~0.03); S(0~0.009);
Cr(3.8~4.4); Mo(4.6~4.9); W(5.6~5.9);V(1.8~2.0); Co(4.6~4.9) |
Q&A:
1.Are you manufacturer? Do you have factory?
We are Professional manufacturer ,we have more than 5 years experience in this field.
2.Does free shipping is possible?
We don't offer free shipping service, but we will give you some discount if you buy large quantity products.
3.Can you send products to our Forwarder in China?
Yes, if you have forwarder in China, i will glad to send products to him/her.
4.Do you make OEM?
Yes, we do. We have laser machine, can laser your logo and sizes on the body of milling cutter, also can print labels.
5.How about the delivery time?
According to the sizes and quantity, delivery time is different. Usually be 5~10 days. We can tell you exact inventory state if you need.
6.Can you produce carbide Special Tool ?
Yes We can. From 2013 year. Our factory main market is from standard end mills to special tools. Special tool according your drawing and sample.
Product Categories : Drill Bit > Step Dril Bit
