3PCS Step Drill Bit Set

• Customized: Customized
• Standard: DIN, JIS, AISI, API
• Length: Taper-length
• Type: Step Drill Bits
• Material: Tungsten Carbide
• Usage: Metal Drilling, Masonry Drilling
• Model NO.: GMK628
• Delivery Time: 15-35days
• Free Sample: Available
• Inch Size: Available
• Finish: Sand Blasted
• Transport Package: on Request
• Specification: all sizes are available
• Trademark: BeHappy
• Origin: China
• HS Code: 82075090
• Production Capacity: 100, 000PCS Per Month

Product Description

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.