Specifications
Brand Name :
Betalent
Model Number :
Fixed shank, micro drill bit
MOQ :
10
Price :
2-300USD/PC
Payment Terms :
L/C, T/T
Supply Ability :
100,000pcs per month
Delivery Time :
5-8days
Packaging Details :
Plastic tube
Material :
Tungsten Carbide
Use :
Metal Drilling,Wood Drilling
Application :
Various materials,tungsten carbide drill bits for drilling
Size :
3-60mm,5mm-15mm,4-12mm,1-23mm,or as your request
Shank :
Round Shank,Straight shank
Usage :
STEEL,rock drilling,aluminium,drill holes,cnc bit for wood
Diameter :
0.25~8mm
Coating :
Altin/Tialn/Tin/Tisin/Nano,Uncoated,Optional
Description

Tungsten carbide drill bits, micro drills,solid tungsten carbide drill bits,small carbide drill bits

A drill bit, is a cutting tool that can create holes by machining workpiece in rotating motion. There are many sizes and shapes drill bits, which have been standardized in metric or inch systems, and the cross-sections of most drill bits are circular, but some special drill bits can produce holes of which cross-sections are not circular .

Fixed shank carbide drill bit standard size:Metal Drilling Tin Coating 4mm Solid Carbide Drill Bit

d Cutting diameter D Shank diameter Lc Cutting length(mm) L Overall length (mm)
0.20-0.25mm 3.0mm 2mm 38/40mm
0.26-0.55mm 3.0mm 3mm 38/40mm
0.56-0.95mm 3.0mm 6mm 38/40mm
0.96-1.20mm 3.0mm 7mm 38/40mm
1.21-1.60mm 3.0mm 8mm 38/40mm
1.66-1.95mm 3.0mm 9mm 38/40mm
1.96-2.50mm 3.0mm 12mm 38/40mm
2.51-3.00mm 3.0mm 12mm 38/40mm
3.01-3.175mm 3.175mm 12mm 50mm
3.176-4.00mm 4.0mm 18mm 50mm
4.01-5.00mm 5.0mm 22mm 50mm
5.01-5.50mm 6.0mm 25mm 50mm
5.51-6.00mm 6.0mm 25mm 50mm
6.01-8.00mm 8.0mm 30-40mm 75-80mm

1,Tip angle 118°,d tolerance within 0.005mm

2, Standard size in stock, ready to ship.

2, Accept customize.

Parameters setting for carbide drill bit milling different materials:

Work piece material

Strength of extension σ b/MP a

Hardness HB Feed f/(mm/r) Speed V/(m/min)

Coolant

d/mm
5~10 11~30 5~10 11~30

Tool steel

1000

1800~1900

2300

300

500

575

0.08~0.12

0.04~0.15

<0.02

0.12~0.2

0.05~0.08

<0.03

35~40

8~11

<6

40~45

11~14

7~10

Water-insoluble

cooling oil

Nickel chrome steel

1000

1400

300

420

0.08~0.12

0.04~0.05

0.12~0.2

0.05~0.08

35~40

15~20

40~45

20~25

Cast steel 500~600 —— 0.08~0.12 0.12~0.2 35~38 38~40
Stainless steel —— —— 0.08~0.12 0.12~0.2 25~27 27~35
Heat resistant steel —— —— 0.01~0.05 0.05~0.1 3~6 5~8
Gray iron —— 200 0.2~0.3 0.3~0.5 40~45 45~60 Dry cut or emulsion
Alloy iron —— 230~350 0.03~0.07 0.05~0.1 20~40 25~45

Water-insoluble

cooling oil or emulsion

—— 350~400 0.03~0.05 0.04~0.08 8~20 10~25
malleable cast iron —— —— 0.15~0.2 0.2~0.4 35~38 38~40

Dry cut or emulsion

Brass —— —— 0.07~0.15 0.1~0.2 70~100 90~100
Cast bronze —— —— 0.07~0.1 0.09~0.2 50~70 55~75
Aluminum —— —— 0.15~0.3 0.3~0.8 250~270 270~300 Dry cut or gasonline
Hard rubber —— —— 0.2~0.4 30~60
Thermosetting resin —— —— 0.04~0.1 60~90
Plastic —— —— 0.05~0.25 30~60
Glass —— —— Manual 4.5~4.7
Glass fiber composite material —— —— 0.063~0.127 198

Specification:

Diameter:1~20mm

Coating:Altin/Tialn/Tin/Tisin/Nano,Uncoated,Optional

Commonly used materials for drill bits are low carbon steel, high carbon steel, high speed steel, cobalt steel, tungsten carbide, polycrystalline diamond, etc. Surface coatings include black oxide, titanium nitride (TiN), titanium aluminum nitride (TiAlN), titanium carbonitride (TiCN) and diamond powder.

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Metal Drilling Tin Coating 4mm Solid Carbide Drill Bit

Ask Latest Price
Brand Name :
Betalent
Model Number :
Fixed shank, micro drill bit
MOQ :
10
Price :
2-300USD/PC
Payment Terms :
L/C, T/T
Supply Ability :
100,000pcs per month
Contact Supplier
Metal Drilling Tin Coating 4mm Solid Carbide Drill Bit
Metal Drilling Tin Coating 4mm Solid Carbide Drill Bit

Xiamen Betalent Carbide Co.,Ltd

Active Member
5 Years
fujian, xiamen
Since 2010
Business Type :
Manufacturer
Total Annual :
700,000-1,500,000
Employee Number :
100~150
Certification Level :
Active Member
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