DIN1869 Extra Length Fully Ground HSS 4341 Straight Shank Black Coated Long Twist Drill Bit

• Customized: Customized
• Standard: DIN 338
• Length: Jobber-length
• Type: Twist Drill Bit
• Material: High Speed Steel
• Usage: Well Drilling, Metal Drilling, Masonry Drilling
• Transport Package: Plastic Box; Cardboard.
• Specification: M35 -1mm
• Trademark: OEM
• Origin: China
• HS Code: 8207509000
• Production Capacity: 50, 000, 000PCS/Year

Product Description

Product Description

Diameter(MM)	Flute Length(MM)	Overall Length(MM)
3	130	190
3.5	145	210
4	150	220
4.5	160	235
5	170	245
5.5	180	260
6	180	260
6.5	190	275
7	200	290
7.5	200	290
8	210	305
8.5	210	305
9	220	320
9.5	220	320
10	235	340
10.5	235	340
11	250	365
11.5	250	365
12	260	375
12.5	260	375
13	260	375

 

Diameter(MM)	Flute Length(MM)	Overall Length(MM)
3.5	180	265
4	190	280
4.5	200	295
5	210	315
5.5	225	330
6	225	330
6.5	235	350
7	250	370
7.5	250	370
8	265	390
8.5	265	390
9	280	410
9.5	280	410
10	295	430
10.5	295	430
11	310	455
11.5	310	455
12	330	480
12.5	330	480
13	330	480

 

Diameter(MM)	Flute Length(MM)	Overall Length(MM)
2	85	125
2.5	95	140
3	100	150
3.5	115	165
4	120	175
4.5	125	185
5	135	195
5.5	140	205
6	140	205
6.5	150	215
7	155	225
7.5	155	225
8	165	240
8.5	165	240
9	175	250
9.5	175	250
10	185	265
10.5	185	265
11	195	280
11.5	195	280
12	205	295
12.5	205	295
13	205	295

 

How to choose drill bits?

For wood: these types of drill bits can be used on any wood, whether it is softwood, hardwood, veneer or plywood.
For metal: these drill bits are used to drill any kind of metal. When it comes to drill bits for metal, inserts are only used for machine tools.
For masonry: these steel drill bits have a brazed tungsten carbide tip.
For tile and glass: these drills bits look like small spears. They are characteristically used with a low drilling speed .

 

Various Specification

 

Coating

HSS Drill Bits

Manufacturing	Surface Finish						Sharpening
	White	Black	B&W	Tin Coated	Amber	Black&Gold	118°	135°S.P.	Turto Max	118°S.P	Web Thinning
Rolled Forged		√	√				√	√		√
Rolled Polished	√	√	√	√	√		√	√		√
Fully Ground	√	√	√	√	√	√	√	√	√	√
Milled	√	√	√	√		√	√				√
Standards	DIN338,DIN1897,DIN340,DIN1869,DIN345,DIN333
	Jobber length,ScrewMachine Length,Taper length,Aircraft Extension
Material	HSS4241,HSS4341,HSS6542(M2),HSS CO5%(M35),HSS CO8%(M42)
Shank	Straight shank(Parallel shank), Reduced Shank, hex shank,1/4″Quick change shank,3Flats shank,1/2"shank,3/8"shank
Helix Angle	Type N,Type W,Type H
Rotating	Right Hand,Left Hand
Flute	Normal,parabolic

HSS Hardness

HSS NO.	HSS GRADE	HRC(Rockwell Hardness)
4241	Mo2Cr4Vsi	60-62
4341	Mo3Cr4Vsi	62-65
9341	Mo3Cr4V	63-66
6542/M2	Mo5Cr4V2	63-66
M35	Mo5Cr4V2Co5	64-67 HSS Co5%

Packing

Main Products

Company Profile

Our Comany

Why Choose Us

Sino abrasives designs, develops, integrates and manufactures a complete range of cutting, grinding and polishing products for all kinds of customers. Including, Superhard materials- Diamond tools, CBN tools, T.C.T tools, Resin bonds abrasives, Sanding tools, Non-woven tools and so on.
Sino Abrasives Limited was born in 2003. It's initially just an abrasives tools factory. After a decade hard work, we had been a integrity manufacture, owned the full automatic abrasives production line, Superhard materials production line and Laser welded line.
We are always focus exclusively on the Creative and Service. We sincerely hope can supply the most appropriate service and products to you!

Raw material cost advantages:

Sino abrasives limited are cooperated with the best partners including international suppliersand domestic suppliers:3M, NCA BUFFALO, CUMI, SINOMACH, ZHONGNAN, ZZSM and so on.

Quality supervise system
We firmly believe that management is the first productive force. Sino abrasives limited had been certificated by ISO 9001 at 2009.
Meanwhile, we had built ourselves quality management system- Smart system. Advanced chemical analysis equipment, scientific quality control methods, strict management system had ensured we can do standardized regulation and information records for daily work: it starts from rawmaterials, to production, to the finished product testing and so on.

Our Customers

 

FAQ

1. Are you are a manufacturer?

A: Yes, we have our own factory, and have excellent research team, and strict quality inspection procedures. We will sure don't
have middleman. Also welcome you visit our factory.

2. What about your quality?

A: We have strict quality inspection procedures, and each of our ner products have been tested before launching it in the market.

3. Can you provide samples?

A: Yes, we can provide samples for you, yet the express fee need be paid by you.

4. If you don't have the size I need, can I have a requirement?

A: Yes, if the size you need we don't have, we can manufacturer as your requirement. It will have a minimum order.