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Carbide Rotary Burrs

MRA Carbide Burrs

MRA

Product Features

MRA carbide burrs, containg full know-how of Muraki, that supplying Carbide burrs in Japanese market for 50 years, is a full-line carbide rotary burr manufacturer capable of one-stop manufacturing from carbide sintering to the finishing of end products. A wide variety of differently shaped heads is available to meet various customer needs.
Additionally, carbide material options include those for general machining and extend to the machining of low-machinability materials, such as stainless steel or heat-resistant alloys to best suit customer needs. Custom-manufacturing services are available. Feel free to contact us for consultation.

MRA Carbide Burrs

MRA Carbide Burrs
For general machining		 CB Series
MRA Carbide Burrs
For machining of nonferrous metal, resins, etc.		 AC Series

AC Series
MRA Carbide Burrs
For machining of stainless steels and low-machinability materials:		 HD Series

HD Series
MRA Carbide Burrs
For machining inside innermost recesses

Long shank (CB/AC/HD Series)
Applications of MRA carbide burrs
List of head shapes
List of head shapes
Cross cutting

Most widely used shape. Lower cutting resistance than spiral cuts. Chips are powdery. Capable of minimization of chattering.

Spiral cutting

A large cutting depth helps to shorten the required time for cutting. Chips are needle-like. Somewhat higher in cutting resistance than a master cut, but capable of fast cutting. Hence, suitable for high-efficiency cutting processes.

Aluminum cutting

Chip pocket widened to prevent clogging, enhance work performance, and help smooth chip discharge.

Conformed Material
Material Cross cutting Spiral cutting Aluminum cutting Material Cross cutting Spiral cutting Aluminum cutting
Carbon steel ○ ○ Magnesium alloy ○ ○
Alloy steel ○ ○ Titanium alloy ○ ○
Heat resisting steel ○ ○ Aluminum ○
Stainless steel ○ ○ Aluminum alloy ○
Cast iron ○ ○ Welded steel ○
Brass & Bronze ○ ○ Plastic ○ ○
Cupper ○ ○ Hard rubber ○

pnuematic tool for rotaly carbide bur Air Grinders (MURAKI recommend High out-put and Long tool-life "GEM NEWMOTOR" series for rotaly carbide bur)