• 120° hss Center Drill Bits Accurate Centering Strong Universality
  • 120° hss Center Drill Bits Accurate Centering Strong Universality
120° hss Center Drill Bits Accurate Centering Strong Universality

120° hss Center Drill Bits Accurate Centering Strong Universality

Product Details:

Place of Origin: China
Brand Name: BWIN
Model Number: A6

Payment & Shipping Terms:

Minimum Order Quantity: 1pcs/box
Price: Negotiable
Packaging Details: Plastic box
Delivery Time: 7 work days
Payment Terms: T/T, Western Union,
Supply Ability: 1-10000pcs 7days
Get Best Price Contact Now

Detail Information

Product Name: A Type HSS Center Drill Bits Model: A0.6-A10 Straight Shank Center Drill Bits
Feature: Accurate Centering Usage: Drilling
Advantage: Strong Universality Processing Type: Drilling Bit
Customized Support: OEM, ODM Standard: ISO
High Light:

Hss Center Drill Bits Accurate Centering

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Hss Center Drill Bits Strong Universality

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Center Drill Bits Accurate Centering

Product Description

Hss Twist 4341 Hss Tungsten Carbide Drill Bit Imperial Small Handle Fast Drilling Flute

Tungsten Carbide Drill Bits Center HSS A Type A0.6-A10 Straight Shank 120°

Quick Detail:

  • Industrial grade high-speed steel
  • German process high precision
  • Tough, durable and long life
  • Accurate and convenient centering
  • Sharper and more wear-resistant

 

Description:

  • High quality 6542HSS material. Extended tool life and wear resistance
  • Full grinding edge design, smooth drilling without residue
  • Wide spiral chip removal groove design, smooth chip removal, conducive to medium and high speed machining
  • Precision grinding 120 ° double edge rear angle, sharp cutting, high efficiency

 

Specifications:​

Brand BWIN
Model Tungsten Carbide Drill Bits For Machine Tools
Workpiece Cast iron/Steel /Stainless steel /Aluminum /copper
Type Nail Tungsten Carbide Drill Bits
Material Tungsten Carbide Drill Bits
Processing Type Medium Cutting
Feature Industrial grade high-speed steel
German process high precision
Tough, durable and long life
Accurate and convenient centering
Sharper and more wear-resistant
Standard ISO
Quantity 1pcs/box
Surface Finish  Black Oxide (Black White, Gray Bright)
Package Plastic Box
Customized Support OEM, ODM

 

Lead Time:

antity(pieces) 1 - 3000 >3000
Lead time (days) 7 To be negotiated

 

Parameter:

3D/5D External Cooling Cutting Parameters

Processed
materials

 

Mild steel
HB≤180
Prehardened steel
-40HRC
stainless steel cast iron aluminium alloy

heat-resisting

alloy

vc/(m/min) 60~120m/min 40~70m/min 25~40m/min 60~120m/min 60~14m/min 15~25m/min
D(mm) N
(min)
F
(mm/r)
N
(min)
F
(mm/r)
N
(min)
F
(mm/r)
N
(min)
F
(mm/r)
N
(min)
F
(mm/r)
N
(min)
F
(mm/r)
2 14000 0.06~
0.08
9500 0.06~
0.08
5500 0.02~
0.05
14000 0.06~
0.08
16000 0.06~
0.08
3200 0.02~
0.04
3 9500 0.09~
0.12
6300

0.09~

0.12

3700 0.03~
0.07
9500 0.09~
0.12
10600 0.09~
0.12
1200 0.03~
0.06
4 7000 0.10~
0.15
4700 0.10~
0.15
2700 0.04~
0.08
7000 0.10~
0.15
8000 0.10~
0.15
1600

0.04~

0.07

5 5700 0.12~
0.18
3800 0.12~
0.18
2200 0.05~
0.10
5700 0.12~
0.18
6400 0.12~
0.18
1250 0.05~
0.09
6 4700 0.14~
0.20
3100 0.14~
0.20
1850 0.06~
0.12
4700 0.14~
0.20
5300 0.14~
0.20
1050 0.06~
0.11
8 3600 0.16~
0.24
2400 0.16~
0.24
1400 0.08~
0.16
3600 0.16~
0.24
4000 0.16~
0.24
800 0.08~
0.14
10 2800 0.18~
0.27
1900 0.18~
0.27
1100 0.18~
0.27
2800 0.27~
0.18
3200 0.18~
0.27
600 0.10~
0.16
12 2400 0.20~
0.3
1600 0.20~
0.3
930 0.12~
0.20
2400 0.20~
0.3
2700 0.20~
0.3
500 0.12~
0.18
14 2100 0.22~
0.35
1400 0.22~
0.35
800 0.13~
0.22
2100 0.22~
0.35
2300 0.22~
0.35
450 0.13~
0.2
16 1800 0.25~
0.36
1200 0.25~
0.36
700 0.25~
0.36
1800 0.25~
0.36
2000 0.25~
0.36
400 0.14~
0.23
18 1600 0.28~
0.38
1100 0.28~
0.38
620 0.28~
0.38
1600 0.28~
0.38
1800 0.28~
0.38
350 0.15~
0.25
20 1400 0.30~
0.4
950 0.30~
0.4
550 0.30~
0.4
1400 0.30~
0.4
1600 0.30~
0.4
320 0.16~
0.28

3D/5D internal cooling cutting parameter

Processed

materials

 

Mild steel

HB≤180

Prehardened steel

-40HRC

stainless steel

cast iron

aluminium alloy

heat-resisting

alloy

vc/(m/min)

60~120m/min

40~70m/min

25~40m/min

60~120m/min

60~14m/min

15~25m/min

D(mm)

N

(min)

F

(mm/r)

N

(min)

F

(mm/r)

N

(min)

F

(mm/r)

N

(min)

F

(mm/r)

N

(min)

F

(mm/r)

N

(min)

F

(mm/r)

3

12700

0.09~

0.12

7400

0.09~

0.12

6300

0.03~

0.07

12700

0.09~

0.12

15000

0.09~

0.12

1200

0.03~

0.06

4

9600

0.10~

0.15

5600

0.10~

0.15

4700

0.04~

0.08

9600

0.10~

0.15

11000

0.10~

0.15

1600

0.04~

0.07

5

7600

0.12~

0.18

4500

0.12~

0.18

3800

0.05~

0.10

7600

0.12~

0.18

9000

0.12~

0.18

1250

0.05~

0.09

6

6400

0.14~

0.20

3700

0.14~

0.20

3200

0.06~

0.12

6400

0.14~

0.20

7400

0.14~

0.20

1050

0.06~

0.11

8

4800

0.16~

0.24

2800

0.16~

0.24

2400

0.08~

0.16

4800

0.16~

0.24

5600

0.16~

0.24

800

0.08~

0.14

10

3800

0.18~

0.27

2200

0.18~

0.27

1900

0.18~

0.27

3800

0.27~

0.18

4500

0.18~

0.27

600

0.10~

0.16

12

3200

0.20~

0.3

1900

0.20~

0.3

1600

0.12~

0.20

3200

0.20~

0.3

3700

0.20~

0.3

500

0.12~

0.18

14

2700

0.22~

0.35

1600

0.22~

0.35

1350

0.13~

0.22

2700

0.22~

0.35

3200

0.22~

0.35

450

0.13~

0.2

16

2400

0.25~

0.36

1400

0.25~

0.36

1200

0.14~

0.25

2400

0.25~

0.36

2800

0.25~

0.36

400

0.14~

0.23

18

2100

0.28~

0.38

1200

0.28~

0.38

1050

0.15~

0.28

2100

0.28~

0.38

2500

0.28~

0.38

350

0.15~

0.25

20

1900

0.30~

0.4

1100

0.30~

0.4

950

0.16~

0.30

1900

0.30~

0.4

2300

0.30~

0.4

320

0.16~

0.28

  • When using this tungsten carbide drill bits for the first time, try to cut at 90% of the cutting speed or 85% of the feed speed according to the above data, and then increase the cutting speed and feed rate one by one after the cutting condition is stable
  • This standard cutting condition is applicable to water-soluble cutting fluid
  • When installing the tool, please use a clean chuck with defects removed, and control the radial runout of the drill bit within 0.02mm
  • The cutting conditions in this table are applicable to situations with hole depth below 5D

 

Notice:

1. Type A central tungsten carbdie drill bits are a cutting tool and is mainly used for metal drilling. Users must reasonably select the type of central drill according to the hole type and ruler size of the parts to be processed

2. The hardness of Type A central tungsten carbdie drill bits is 62-64 degrees, which can be used to process steel parts and stainless steel

3. Before the tool is used, the anti rust grease must be cleaned to prevent chips from sticking to the blade and affecting the cutting performance

4. The surface of the workpiece to be machined shall be straight without sand holes or hard spots to avoid damage to the tool

5. Precautions: In case of any abnormal condition during processing, stop processing immediately, find out the cause before processing, and pay attention to the wear of the cutting edge for timely repair; Clean the oil stain on the surface of the tool after use and keep it properly

6. This product can be reground for use

 

Applications:

Our tungsten carbide drill bits could to be processed Alloy steel, Tool steel, carbon steel, stainless steel, Cast iron and Titanium alloy. Working material as following:

Cbn insert Snmg120408 turning inserts Cnc Insert Turning Tool Snmg 120408

FAQ

Q1. Excessive aperture

Reasons: 1. The cemented carbide drill is not well clamped, and the runout of the spindle itself is too large

                2.  Asymmetrical sharp angle, excessive blade height difference, eccentric cross blade

Solution:  1. select high-quality tool handle and fixture, calibrate the spindle, and carefully measure and adjust each time the drill is clamped

                2. Re sharpen and correct, and check the accuracy after sharpening

 

Q2. Poor consistency of aperture

Reasons: 1. Asymmetrical sharp angle, too large difference in blade height, eccentric transverse edge, and too much wear on edge surface

                2. The cemented carbide drill bit is not properly clamped, the runout of the spindle itself is too large, and the workpiece is not firmly clamped

                3. Excessive feed speed

                4. Insufficient cutting fluid supply

Solution:  1. Re sharpen the drill and check the accuracy after sharpening

                2. Select a good tool handle and fixture, calibrate the spindle, and carefully measure and adjust each time the drill is clamped

                3. Reduce the feed speed of cemented carbide drill

                4. Change the cutting fluid supply method and increase the flow).

 

Q3. Poor hole straightness and verticality

Reasons: 1. Excessive tool wear

                2. Asymmetrical sharp angle, excessive blade height difference, eccentric cross blade

                3. Insufficient rigidity

                4. Uneven cutting plane

Solution: 1. Re sharpen

               2. Re sharpen and correct, and check the accuracy after sharpening

               3. Improve the rigidity of machine tools, jigs, cemented carbide drills, etc

               4. Check the levelness of the pre machined surface

 

Q4. Poor hole location and poor consistency of center distance

Reasons: 1. The drill bit is not properly clamped, and the spindle itself has excessive runout

                2. Deviation during cutting

                3. Machine tool accuracy loss

                4. The centering effect of cemented carbide bit is poor, and the cross edge is eccentric

Solution:  1. select a good tool handle and fixture, calibrate the spindle, and carefully measure and adjust each time the drill is clamped

                2. Improve the rigidity of the cutter and machine tool, and the rigidity of the workpiece and fixture. Use the drill type with good cutting performance, and check the levelness of the cutting surface

                3. Check the accuracy of the machine tool

                4. Re sharpen the carbide bit, and check the accuracy after sharpening

 

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