Precision Tungsten Carbide Flat Bottom Drill Bit for Accurate Holes

• Customization: Available
• Customized: Customized
• Length: 38-330mm
• Model NO.: 666
• Type: Twist Drill Bit
• Material: Tungsten Carbide
• Usage: Wood Drilling, Well Drilling, PCB Drilling, Metal Drilling, Masonry Drilling
• Flute Diameter: 0.3-40mm
• Dia Size: 4mm-40mm
• Precision: 0.005~-0.01mm
• Over All Length: 38-330mm
• HRC: 45/55/60/65HRC
• Flute: 2/3
• Suitable for: Coper.Cast Iron.Carbon Steel.Mould Steel
• Controlling Mode: CNC System
• Use: Metal Drilling
• Transport Package: Each Piece with Plastic Box in Carton.
• Trademark: eitfs
• Origin: China
• Production Capacity: 3000 Piece/Pieces Per Month

Product Description

High Hardness Solid Carbide Flat Bottom Drill Bits For Metal Drilling

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 Designed Drill Tip: Special designed drill tip will increase the Centering Ability and Chip breaker ability. Thus,the processing efficiency will be increased.

2. Much Sharper Cutting Edge: The much sharper cutting edge can decrease the cutting resistance and and torque. The lifetime of tools and machines will be longer.

3. Heat-resistant Coating: With highly heat-resistant HELICA/ALTIN coating, can be used for high-speed processing.

4. Smooth and Wide Flute:Smooth and wide flute will remove the cuttings more easily.

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.

Products Detail:

Bottom Drill Bits
d1	d2	L1	L3	L4	L2	Coolant solution
3.00-3.70	6	62	20	14	36	Inner/Outer Coolant
4.00-4.65	6	66	24	17	36	Inner/Outer Coolant
4.80-6.00	6	66	28	20	36	Inner/Outer Coolant
6.10-7.00	8	79	34	24	36	Inner/Outer Coolant
7.10-8.00	8	79	41	29	36	Inner/Outer Coolant
8.10-10.00	10	89	47	35	40	Inner/Outer Coolant
10.25-12.00	12	102	55	40	45	Inner/Outer Coolant
12.25-14.00	14	107	60	43	45	Inner/Outer Coolant
14.25-16.00	16	115	65	45	48	Inner/Outer Coolant
16.50-18.00	18	123	73	51	48	Inner/Outer Coolant
18.50-20.00	20	131	79	55	50	Inner/Outer Coolant
20.50-25.00	25	140	85	60	56	Inner/Outer Coolant
Customized Tools are Acceptable

Why Choose Us?
1. Chip breaker ability


2. Perfect oxidation resistance in high temperature 1100ºC


3. Abrasion condition of side cutting edge after processing 60m

4. Abrasion condition of top cutting edge after processing 60m

Our Company:
Changzhou Aitefasi Tool Co., Ltd. founded in 2004, is a high-tech manufacturer specialized in providing High-performance carbide cutting tools. Many high-performance equipments which are from Germany, USA and Switze produce high-quality cnc tools, including:
1. Tungsten Solid Carbide Drill Bits
Inner coolant and outer coolant drill bits.
Support 3XD, 5XD, 8XD, 20XD, even more length and customized accepts.
Twist drill, center drill, bottom drill and other types of drill bits.
2. Tungsten Solid Carbide End Mill
Square end mill, ball nose end mill and other end mills.
3. Tungsten Solid Carbide Reamer
Twist and straight flute, with high precision and long life.
4. Customized CNC Toolings
Customized as requirements, ODM & OEM accepts.
What We Have?
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.

Why Trust Us:

Exhibition:

Package & Delivery:

FAQ:
Q1. What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you do the rest payment.

Q2. What are your terms of delivery?
A: EXW, FOB, CFR, CIF, ETC.

Q3. How about your delivery time?
A: Generally, It will take 10-15 days after receiving your advance payment. The specific delivery time depends on theitems and the quantity of your order.

Q4. Do you provide samples ? is it free or extra ?
A: Yes, we could offer our stock sample for free charge and you please pay the cost of freight.
custom cutting tools negotiated then we will quote the best sample cost.