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Brand Name : AMG
Model Number : D1-20mm
Certification : ISO9001
Place of Origin : China
MOQ : Single Item
Price : Quote on your specification
Payment Terms : T/T,Western Union
Supply Ability : Per your request
Delivery Time : 5-8 work days
Packaging Details : Per your request
Material : Tungsten Carbide,HIGH SPEED STEEL,High Carbon Steel,Diamond,PCD
Type : Twist Drill Bit,Core Drill Bit,Various,taper drill bit,Glass Drill Bits
Use : Metal Drilling,Wood Drilling,Masonry Drilling,PCB,small hole drilling
Product name : Woodworking ToolsTungsten Carbide Drill Bit,Hot Selling 4-12mm Cross Carbide Tip Glass Tile Drill Bits,Inner coolant twist carbide drills bits,cutting tool PCD diamond tip core drill bit,Tungsten carbide left hand drill bits
Color : Black,Silver,gray,rainbow,Black Groove White Body
Application : Various materials,Ceramic,used for granite and marble quarry,tungsten carbide drill bits for drilling,Glass
Size : or as your request,3*60mm,5mm-15mm,4-12mm,1-23mm
Shank : Round Shank,Straight shank,19x108mm rod,3.175,parallel shank
Usage : STEEL,rock drilling,aluminium,drill holes,cnc bit for wood
Packing : Plastic Box,Plastic case,One piece /Blister Card,PVC Bag,blister card package
Oem : Available,Yes..,Acceptable,OK
Tip material : Tungsten Carbide
Diameter : 28mm,1~20mm,36mm,1-20,40mm
Process : Welding,Milled Flutes and Welded Tip
Coating : Altin/Tialn/Tin/Tisin/Nano,Uncoated,Optional
Main products : HSS Twist Drill Bits,TCT Hinge Boring Bit,TCT Router Bits Etc.,Tungsten Carbide Button
Hrc : 45/50/55/60,55/60/65 degree
Diameter: 1.0 mm – 20.0 mm
Overall Length: 34 mm – 260 mm
Shank:
Straight shank
Reduced shank (optional)
Flute Length: Standard / jobber length / long series
HSS 4241 – For general drilling
HSS 4341 – Higher hardness
HSS 6542 (M2) – Industrial-grade
HSS M35 (5% cobalt) – For stainless steel
HSS M42 (8% cobalt) – High hardness applications
Uncoated
Black oxide
TiN (Gold)
TiAlN (Black-purple)
Amber / Bronze coating
| Parameter | Description |
|---|---|
| Point Angle | 118° / 135° optional |
| Helix Angle | 25°–32° (standard) |
| Tolerance | h8–h9 |
| Hardness | 62–67 HRC (depending on material) |
| Flute Type | Spiral twist |
| Surface Roughness | Ra < 0.4 |
| Tip Type | Split point / standard |
HSS materials provide excellent toughness and wear resistance.
Precision-ground flutes ensure smooth and fast drilling.
Drills can withstand high temperatures during continuous cutting.
Optimized spiral angle reduces friction and prevents chip blocking.
Suitable for metal, wood, and plastic.
Meet different customer needs—from hobby users to industrial factories.
Stable quality, consistent tolerance control, competitive prices.
Carbon steel
Alloy steel
Cast iron
Stainless steel(M35/M42 recommended)
Softwood
Hardwood
Composite boards
Aluminum
Copper
Brass
Plastics
PVC
Acrylic
CNC machines
Drill press
Hand drills
Manufacturing workshops
DIY and home use
Industrial production
Hardware distribution

CHANGZHOU AMG PRECISION TOOL MANUFACTURING CO., LTD. specializes in producing tungsten solid carbide end mills, drill bits, reamers, TCT saw blades, and welded cutting tools for CNC machining. AMG Precision also designs and manufactures various types of customized carbide tools tailored to specific customer requirements.
Our company uses premium domestic and imported carbide rods, combined with advanced German manufacturing technology, to produce high-quality cutting tools. By integrating superior raw materials with precision-engineered equipment, AMG delivers reliable and consistent products that meet even the most demanding machining standards.
We sincerely welcome both new and existing customers to contact us for inquiries and cooperation opportunities. Let AMG provide the perfect cutting solution for your specific machining needs.
AMG is committed to enhancing productivity, reducing production costs, and solving complex cutting challenges with uncompromising machining quality. We proudly serve the manufacturing industry with innovative and high-performance cutting tool solutions designed to meet global industrial demands.



1.Are you factory or trading company?
Yes, we have factory. We are professional manufacturerwith 20 years of production experience. Besides, we also do some trading.
2. Is free shipping possible?
We don’t offer free shipping service, but we will give you some discount if you buy large qty products.
3.Can you send products to our Forwarder in China?
Yes, if you have forwarder in China, I will glad to send products to him/her.
4.Do you make OEM?
Yes, we do. We have laser machine, can laser your logo and sizes on the body of milling cutter, also can print labels.
5.How about the delivery time?
According to the sizes and quantity, delivery time is different. Usually 3~7days. We can tell you exact inventory state if you need.

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