China Factory Solid Carbide Step Twist Drill Bits with Coating

• Customization: Available
• Customized: Customized
• Standard: China
• Model NO.: Carbide Step Drill
• Type: Twist Drill Bit
• Material: Tungsten Carbide
• Usage: Wood Drilling, Well Drilling, Metal Drilling
• Over All Length: 38-330mm
• Precision: 0.005~-0.01mm
• Transport Packing: Each Piece with Plastic Box in Carton
• Flute Diameter: 0.3-40mm
• HRC: 45/55/60/65HRC
• Controlling Mode: CNC Tooling System
• Finish Surface: Plain Surface, The Side, Socket
• Transport Package: Carton Packing
• Specification: Multiple specifications
• Trademark: WEIYU
• Origin: China
• HS Code: 8207709000
• Production Capacity: 5000 Piece/Pieces Per Mouth

Product Description

Products Show


Products Detail

Step Drill Bits
D1	D2	L1	L2	L3
3.40	6.0	66	28	11.4
4.30	6.0	66	28	13.6
5.00	6.6	79	41	16.5
6.90	10.0	89	47	21.0
8.70	12.0	102	55	25.5
10.40	14.0	107	60	30.0
12.25	16.0	115	65	34.5
14.25	18.0	123	73	38.5
Customized Tools are Acceptable

Products Function
1.HRC: HRC45 HRC55 HRC58 HRC60 HRC65
2.Coated: AlTiN, TiAlN, TiAISI,TiSiN, TiN, DLC,Nano, Diamond
3.Could be used for the processing of copper, cast iron, carbon steel, mould steel, stainless steel, titanium alloy, tool steel, and heat-treated steel
 
Products Features
1. Special Cutting Edge: Special cutting edge can increase the cutting ability. The lifetime of tools and machines will be longer.
2. Smooth and Wide Flute: Smooth and wide flute will remove the cuttings more easily.
3. Heat-resistant Coating: With highly heat-resistant HELICA coating, can be used for high-speed processing.
4. Bronze Coating: Under bronze coating, any abrasion is easy to be recognized.
5. High Quality Raw Material: The raw material is used of high toughness, grain-sized carbon tungsten.
6. Polished Surface Treatment: With high polished surface treatment, reduce the friction coefficient could be reduced, the lathe efficiency could be improved, more production time could be saved.


Equipment & Control System
1. Imported production equipment
2 sets "Walter HP" from Germany, specializing in manufacture large diameter tools;
1 set "Walter Micro"from Germany,specializing in manufacture Micro diameter tools;
2 sets Schutte Wu 305 Linear from German;
2 sets Star PTG6 from USA;
2 sets "Rollomatic GrindSmart628XS" high precision grinding machine from Switzerland;
1 set Rollomatic NP5 from Switzerland.

2. Imported inspection equipment
1 set URMA digiset 3 tool measuring equipment from Switzerland;
2 sets PG 1000 tool measuring equipment testing the point of drill bit from USA;
1 set Mitutoyo Laser Scan Micrometer Equipment.

3. Strict quality control
Strict quality control process covers every step of production from the raw materials to the finished product, and provide strict quality warranty.




Our Exhibition







Our Packing





FAQ:
1. Are you manufacturer? Do you have factory?
We are professional manufacturer and we have more than 20 years experience in this field.
 
2. What can you buy from us?
You can buy carbide end mill, ball end mill, round nose end mill, thread end mill, carbide drill, saw blade cutter, carbide round rod and so on.

3. Is free shipping possible?
We can't offer free shipping service, but we will give you some discount if you buy large quantity products. We have cooperation express companies that  can offer you the best price of shipping cost.
 
4. Can you send products to our Forwarder in China?
Yes, if you have Forwarder in China, we are willing to send products to him/her.