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Zhuzhou MMM New Material Co., Ltd.

City:zhuzhou

Province/State:hunan

Country/Region:china

Contact Person:MrBruce Xie

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China 9D Deep Hole Stainless Steel Solid Carbide Drill Bits With Internal Cooling High Precision wholesale

9D Deep Hole Stainless Steel Solid Carbide Drill Bits With Internal Cooling High Precision

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Brand Name :MMM

Model Number :∅2-∅20

Certification :ISO 9001

Place of Origin :CHINA

MOQ :5 PCS

Price :USD

Payment Terms :L/C, T/T

Supply Ability :5,000 PCS/Month

Delivery Time :5-15 Days

Packaging Details :Internal Plastic Box Packaging

Material :Cemented Carbide

Coating :PVD, Non

Material to be processed :P, M, K, N, H, S

Standard :ISO, DIN, MMM

Use :Metal Drilling

Type :Twist Drill Bit

Application :Drilling Holes

Usage :General High Speed Cutting

Shank :Round Shank

Precision :High Precision

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Solid Carbide Drill for 9D Deep Hole Stainless Steel With Internal Cooling High Precision

Technical Information:

The special drill point structure optimized for deep hole drilling can process deep holes up to 9 times the drill diameter.
Sharp cutting edge, smooth chip removal, light cutting, effectively improve the surface quality of the machined hole.
Excellent special coating and cutting edge treatment technology significantly increase the service life of the drill.

Recommended Cutting Parameters:

When using this series of tools for the first time, the cutting is performed according to the recommended cutting speed of 90% or the feed rate of 85%. When the cutting condition is stable, the cutting speed and the feed are increased one by one.Cutting parameters are recommended for water soluble cutting fluids.The recommended cutting parameters are externally cooled drills, Internally cooled drills can be increased by 10%-15% depending on the situation.

Material	Mild Steel Carbon Steel Alloy Steel <HRc 30		Pre-Hardened Steel <HRc 40		Stanless Steel
Speed m/min	60-120		40-70		25-40
Diameter mm	Rotating r/min	Feed mm/r	Rotating r/min	Feed mm/r	Rotating r/min	Feed mm/r
2	14000	0.06-0.08	9500	0.06-0.08	5500	0.02-0.05
3	9500	0.09-0.12	6300	0.09-0.12	3700	0.03-0.07
4	7000	0.10-0.15	4700	0.10-0.15	2700	0.04-0.08
5	5700	0.12-0.18	3800	0.12-0.18	2200	0.05-0.10
6	4700	0.14-0.20	3100	0.14-0.20	1850	0.06-0.12
8	3600	0.16-0.24	2400	0.16-0.24	1400	0.08-0.16
10	2800	0.18-0.27	1900	0.18-0.27	1100	0.10-0.18
12	2400	0.20-0.30	1600	0.20-0.30	930	0.12-0.20
14	2100	0.22-0.35	1400	0.22-0.35	800	0.13-0.22
16	1800	0.25-0.36	1200	0.25-0.36	700	0.14-0.25
18	1600	0.28-0.38	1100	0.28-0.38	620	0.15-0.28
20	1400	0.30-0.40	950	0.30-0.40	550	0.16-0.30
25	1500	0.32-0.42	900	0.32-0.42	700	0.17-0.32

Material	Cast Iron		Ductile Iron		Heat Resistant Alloy
Speed m/min	60-120		50-100		15-25
Diameter mm	Rotating r/min	Feed mm/r	Rotating r/min	Feed mm/r	Rotating r/min	Feed mm/r
2	14000	0.06-0.08	11000	0.06-0.08	3200	0.02-0.04
3	9500	0.09-0.12	7400	0.09-0.12	2100	0.03-0.06
4	7000	0.10-0.15	5600	0.10-0.15	1600	0.04-0.07
5	5700	0.12-0.18	4500	0.12-0.18	1250	0.05-0.09
6	4700	0.14-0.20	3700	0.14-0.20	1050	0.06-0.11
8	3600	0.16-0.24	2800	0.16-0.24	800	0.08-0.14
10	2800	0.18-0.27	2200	0.18-0.27	600	0.10-0.16
12	2400	0.20-0.30	1900	0.20-0.30	500	0.12-0.18
14	2100	0.22-0.35	1600	0.22-0.35	450	0.13-0.20
16	1800	0.25-0.36	1400	0.25-0.36	400	0.14-0.23
18	1600	0.28-0.38	1200	0.28-0.38	350	0.15-0.25
20	1400	0.30-0.40	1100	0.30-0.40	320	0.16-0.28
25	1500	0.32-0.42	1100	0.32-0.42	250	0.17-0.3

FAQ:
1. Where are your factory located?

Our factory located in zhuzhou city, hunan province.

2. What are your main products?
Our main products are carbide cutting tools, including end mill, face mill, drill bits etc.
3. What raw material you use?
We have rods with 3-4 types hardness, hrc45, hrc55, hrc60,hrc65.. Your work piece hardness decides what rods are suitable for.
4. Do you have grinding machine?
Yes, we have 8 Walter from Germany and professional engineers modeling cutters
5. How to ensure the quality?
We have precision detection machine, quality inspectors check cutters one by one.
6. How to deal with the cutters under verified?
These under verified cutters are all scraped.
7. I only have the drawings of work pieces? can you design cutters for me?
Yes, of course, show me work piece drawing, I will show you cutters’ drawing.

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