Tungsten carbide drill bits, micro drills,solid tungsten carbide
drill bits,small carbide drill bits
Cemented carbide has the advantages of high hardness, toughness and
corrosion resistance can stand the annealing without changing its
physical characters. So, cemented carbide is a very good material
for drill bits, replace the HSS perfectly in function and tool
service life, however price per piece is more expensive than HSS
drill bits, usually applied for precision drilling in lathe tools,
machining centers, automobile parts, molds, ceramics, woodworking,
etc.
Fixed shank carbide drill bit standard size:
| 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:
Material:Tungsten Carbide
Use:Metal Drilling,Wood Drilling
Packing:Plastic case
Application:Various materials,tungsten carbide drill bits for
drilling
Size:3*60mm,5mm-15mm,4-12mm,1-23mm, or as your request
OEM:Acceptable
Shank:Round Shank,Straight shank
Usage:STEEL,rock drilling,aluminium,drill holes,cnc bit for wood
Diameter:1~20mm
Coating:Altin/Tialn/Tin/Tisin/Nano,Uncoated,Optional
Why Choose us ?
1,Competitive price
2,Timely delivery of consignments
3,Proper packaging
4,Transparency in all dealings
5,Excellent after sales customer support
6,Professional terms of business.
