Carbide drill bit, Carbide drill bits for hardened steel, carbide drill bits for metal,fixed shank drill bits
Drill bit types: Drill bits can be divided into two categories, one is flat drills, including twist drills, center drills, deep hole drills and other drilling drill bits; the other is reaming drill bits, including countersink drills and other reaming drill bits. Big spiral drill bits are used in construction projects with an outer diameter of 400 to 600 mm and a length between 12 meters and 8 meters. Different type drill bits work together to in the complicated task. Flat-bottom drill bits are used for loose soil layers, rake drill bits for miscellaneous fill soil layers, and cylinders for obstacles such as concrete and strips.
Straight shank right hand carbide twist drill Standar size:
| d=D Cutting dia. | Lc Cutting length | L Overall length |
| 0.80-1.00mm | 12mm | 50mm |
| 1.05-1.50mm | 14mm | 50mm |
| 1.55-5.00mm | 18mm | 50mm |
| 2.05-2.50mm | 20mm | 50mm |
| 2.55-3.00mm | 25mm | 50mm |
| 3.05-4.00mm | 25mm | 50mm |
| 4.05-4.50mm | 25mm | 50mm |
| 4.55-5.00mm | 25mm | 50mm |
| 5.05-6.00mm | 25mm | 50mm |
| 6.05-6.50mm | 30mm | 60mm |
| 6.55-7.00mm | 30mm | 60mm |
| 7.05-7.50mm | 40mm | 75/80mm |
| 7.55-8.00mm | 40mm | 75/80mm |
| 8.05-8.50mm | 40mm | 75/80mm |
| 8.55-9.00mm | 40mm | 75/80mm |
| 9.05-9.50mm | 40mm | 75/80mm |
| 9.55-10.00mm | 40mm | 75/80mm |
| 10.05-10.50mm | 45mm | 100mm |
| 10.55-11.00mm | 45mm | 100mm |
| 11.05-11.50mm | 50mm | 100mm |
| 11.55-12.00mm | 50mm | 100mm |
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 | |
1,Tip angle 118°,d tolerance within 0.005mm
2, Standard size in stock, ready to ship.
2, Accept customize.
product picture:
Specification:
Size:3*60mm,5mm-15mm,4-12mm,1-23mm, or as your request
OEM:Acceptable
After Sale Services:
Betalent Carbide offers below after-sale services:
1. Deliver goods should be exactly the same as order and payment
If there is any quality or quantity in conformity, please feedback as soon as you finish the shipment inspection. Usually, the quantity difference should come up within 7 days, and please better keep the outside packing condition picture if you find any broken carton when you receive shipment.
If grades, size, or items are not the same, please take pictures of the labels and items, and claim to salespersons.
Problems can be solved by goods return, free replacement, or refund as per coordination.
2. The quality problem which could not be found right upon the first inspection
If there are some problems with service life or unusual breaking, please contact the salesperson for professional service, and we will analyze the items by instrument. If problems are caused by unqualified manufacture, we accept the free replacement, return, or refund as you like.
3. Want to get better performance than current items
Please contact salespersons, they would consult our professional technician team for a solution. Betalent Carbide keeps a 10 technician team in which all persons are professional, experienced and skilled experts in each area.
4. Help you to gain the market
We can help you to gain the market base on our years of experience in this industry, and the market trend information and other customizations if you need for your market.
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