Metal Drilling Tin Coating 4mm Solid Carbide Drill Bit

Brand Name:Betalent
Model Number:Fixed shank, micro drill bit
Minimum Order Quantity:10
Delivery Time:5-8days
Payment Terms:L/C, T/T
Price:2-300USD/PC
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Location: Xiamen Fujian China
Address: Xinggang Wuli, Xiamen Area,China (Fujian) Pilot Free Trade Zone 361024 Xiamen Betalent Carbide Co.,Ltd
Supplier`s last login times: within 23 hours
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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:


d Cutting diameterD Shank diameterLc Cutting length(mm)L Overall length (mm)
0.20-0.25mm3.0mm2mm38/40mm
0.26-0.55mm3.0mm3mm38/40mm
0.56-0.95mm3.0mm6mm38/40mm
0.96-1.20mm3.0mm7mm38/40mm
1.21-1.60mm3.0mm8mm38/40mm
1.66-1.95mm3.0mm9mm38/40mm
1.96-2.50mm3.0mm12mm38/40mm
2.51-3.00mm3.0mm12mm38/40mm
3.01-3.175mm3.175mm12mm50mm
3.176-4.00mm4.0mm18mm50mm
4.01-5.00mm5.0mm22mm50mm
5.01-5.50mm6.0mm25mm50mm
5.51-6.00mm6.0mm25mm50mm
6.01-8.00mm8.0mm30-40mm75-80mm

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 HBFeed f/(mm/r)Speed V/(m/min)

Coolant

d/mm
5~1011~305~1011~30

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 steel500~600——0.08~0.120.12~0.235~3838~40
Stainless steel————0.08~0.120.12~0.225~2727~35
Heat resistant steel————0.01~0.050.05~0.13~65~8
Gray iron——2000.2~0.30.3~0.540~4545~60Dry cut or emulsion
Alloy iron——230~3500.03~0.070.05~0.120~4025~45

Water-insoluble

cooling oil or emulsion


——350~4000.03~0.050.04~0.088~2010~25
malleable cast iron————0.15~0.20.2~0.435~3838~40

Dry cut or emulsion

Brass————0.07~0.150.1~0.270~10090~100
Cast bronze————0.07~0.10.09~0.250~7055~75
Aluminum————0.15~0.30.3~0.8250~270270~300Dry cut or gasonline
Hard rubber————0.2~0.430~60
Thermosetting resin————0.04~0.160~90
Plastic————0.05~0.2530~60
Glass————Manual4.5~4.7
Glass fiber composite material————0.063~0.127198

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.

China Metal Drilling Tin Coating 4mm Solid Carbide Drill Bit supplier

Metal Drilling Tin Coating 4mm Solid Carbide Drill Bit

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