HRA 90.3+

Hardness

100% WC+Co

Pure Material

19+ YRS

Experience

Carbide Burr

JOINT CARBIDE

TYPE K CARBIDE BURR

HARDNESS

HRA 90.3-91.5

SHANK

R SHAPE

MATERIAL

PURE WC

SOLDER

50% SILVER

Burr Shape – 90° Countersink

Type K carbide burr is suitable for machining 90° counter boring, arc chamfering of the workpiece

Superior Hardness -- HRA 90.3-91.5 for outstanding wear resistance

High Precision -- Fine finished surface with optimized chip removal

Extended Service Life -- Premium raw materials, cost-effective pricing

R-Shape Shank -- 40Cr steel, enlarged welding area for impact resistance

Request a Quote Browse All Burrs

Raw Material

100% pure tungsten carbide raw material. Cutting edges undergo professional hardening and precision honing for exceptional sharpness and long-lasting durability.

Double / MX Cut

Ideal for machining stainless steel and high-temperature resistant alloys. Cross-hatch pattern removes material efficiently while reducing heat buildup.

R-Shape Shank

Enlarged welding area greatly enhances impact resistance. Made of premium 40Cr steel. Compatible with 1/4" collet rotary tools for firm, stable clamping.

Welding Process

Flat-bottom solid welding with 50% silver-content sandwich silver solder. Large, gap-free area. Low-temperature welding prevents damage to tungsten carbide blanks.

SUPERIOR HARDNESS

HRA 90.3-91.5

Outstanding wear resistance

DAILY CAPACITY

30,000+

Pieces per day

CNC MACHINES

418

5-axis precision

Standard Cut Types

CUT MX

Double Cut / MX Cut

Suitable for machining stainless steel, steel with hardness less than HRC60, and high-temperature-resistant materials.

CUT M

Single Cut

Suitable for machining cast iron, steel and stainless steel with hardness less than HRC60.

CUT AL

Aluminium Cut

Suitable for machining aluminium, aluminium alloys, non-ferrous metals and plastics.

Special Cut Types

CUT C

Coarse Cut

Suitable for fine machining of soft metals, non-ferrous metals, steel and cast iron.

CUT F

Fine Cut

Suitable for fine machining of cast iron, steel with hardness less than HRC60 and stainless steel.

CUT D

Diamond Cut

Suitable for fine machining of all materials with hardness less than HRC60.

CUT MR

Chip Breaker Cut

Suitable for machining stainless steel, steel and cast iron.

CUT SX

Steel Cut

Suitable for steel and cast iron machining with better chip evacuation.

CUT INOX

INOX Cut

Suitable for stainless steel and soft titanium alloys.

Use Cases

Deburring and edge finishing

Surface preparation and smoothing

Weld grinding and cleanup

Porting and polishing

Engraving and carving details

Industries Served

Automotive

Aerospace

Mold & Die

Metalworking

Shipbuilding

Medical Devices

Defense & Military

Tool Manufacturing

Power Plants

Railway

Foundries

Renewable Energy

Jewelry

Construction

Prototyping

Heavy Equipment

Recommendations for Use

Choose appropriate rotational speed before grinding

Select suitable burr shape, diameter and cut type for material

Confirm shank and chuck are connected firmly before use

Avoid excessive pressure -- high heat shortens burr lifespan

Slow down machine if burrs get stuck in the material

Do not use burrs in combustible gas environments

Wear protective glasses and gloves before grinding

Choose correct cut type for the applied material hardness

Quality Assurance

MANUFACTURING PROCESS

Every carbide burr goes through our rigorous 6-step manufacturing process to ensure consistent quality and precision.

01

Wet Grinding

02

Pressing

03

Sintering

04

Fluting

05

Testing

06

Shipping

Factory Advantage

China's First Carbide Burr Manufacturer

with the complete material supply chain -- from raw WC to finished tool

3

Factories

418

CNC Machines

19+

Years

Get in Touch

REQUEST A QUOTE

Fill in your requirements and our team will respond within 24 hours with pricing and specifications.

Why Choose Joint Carbide?

Direct manufacturer -- no middleman pricing

Custom specifications available

30,000+ pieces daily production capacity

19+ years global export experience

24-hour response guarantee

RESPONSE TIME

24H

Business hours guaranteed

Full Name

Email Address

Company Name

Phone / WhatsApp

Cut Type Interested

Estimated Quantity

Requirements / Message

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