High Quality DIN338 / DIN340 HSS Straight Twist Drill Bit

• Customized: Customized
• Standard: DIN 338
• Length: Taper-length
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Type: Twist Drill Bit
• Material: High Speed Steel
• Usage: Wood Drilling, Well Drilling, Metal Drilling, Masonry Drilling
• Transport Package: Plastic Box; Cardboard.
• Specification: 4241 -30mm Din 338
• Trademark: OEM
• Origin: China
• HS Code: 8207509000
• Production Capacity: 50, 000, 000PCS/Year
• Package Size: 10.00cm * 10.00cm * 10.00cm
• Package Gross Weight: 1.000kg

Product Description

DIN340
Diameter (mm)	Flute Length(mm)	Overall Length(mm)
1	33	56
1.1	37	60
1.2	41	65
1.3	41	65
1.4	45	70
1.5	45	70
1.6	50	76
1.7	50	76
1.8	53	80
1.9	53	80
2	56	85
2.1	56	85
2.2	56	90
2.3	56	90
2.4	62	95
2.5	62	95
2.6	62	95
2.7	66	100
2.8	66	100
2.9	66	100
3	66	100
3.1	69	106
3.2	69	106
3.3	69	106
3.4	73	110
3.5	73	110
3.6	73	110
3.7	73	110
3.8	78	119
3.9	78	119
4	78	119
4.1	78	119
4.2	78	119
4.3	82	126
4.4	82	126
4.5	82	126
4.6	82	126
4.7	82	126
4.8	87	132
4.9	87	132
5	87	132
5.1	87	132
5.2	87	132
5.3	87	132
5.4	91	139
5.5	91	139
5.6	91	139
5.7	91	139
5.8	91	139
5.9	91	139
6	91	139
6.1	97	148
6.2	97	148
6.3	97	148
6.4	97	148
6.5	97	148
6.6	97	148
6.7	97	148
6.8	102	156
6.9	102	156
7	102	156
7.1	102	156
7.2	102	156
7.3	102	156
7.4	102	156
7.5	102	156
7.6	109	165
7.7	109	165
7.8	109	165
7.9	109	165
8	109	165
8.1	109	165
8.2	109	165
8.3	109	165
8.4	109	165
8.5	109	165
8.6	115	175
8.7	115	175
8.8	115	175
8.9	115	175
9	115	175
9.1	115	175
9.2	115	175
9.3	115	175
9.4	115	175
9.5	115	175
9.6	121	184
9.7	121	184
9.8	121	184
9.9	121	184
10	121	184
10.1	121	184
10.2	121	184
10.3	121	184
10.4	121	184
10.5	121	184
10.6	121	184
10.7	128	195
10.8	128	195
10.9	128	195
11	128	195
11.1	128	195
11.2	128	195
11.3	128	195
11.4	128	195
11.5	128	195
11.6	128	195
11.7	128	195
11.8	128	195
11.9	134	205
12	134	205
12.1	134	205
12.2	134	205
12.3	134	205
12.4	134	205
12.5	134	205
12.6	134	205
12.7	134	205
12.8	134	205
12.9	134	205
13	134	205
13.1	134	205
13.2	134	205
13.3	140	214
13.4	140	214
13.5	140	214
13.6	140	214
13.7	140	214
13.8	140	214
13.9	140	214
14	140	214
14.25	144	220
14.5	144	220
14.75	144	220
15	144	220
15.25	149	227
15.5	149	227
15.75	149	227
16	149	227
16.25	154	235
l6.5	154	235
16.75	154	235
l7	154	235
17.25	158	241
17.5	158	241
17.75	158	241
18	158	241
18.25	162	247
18.5	162	247
18.75	162	247
19	162	247
19.25	166	254
19.5	166	254
19.75	166	254
20	166	254

 

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.