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Martindale CARBIDE Rotary Burs

     For the toughest metal-cutting jobs, for cutting abrasive materials and metals too hard or tough for high speed steel tools, Martindale Carbide Rotary Burs are the answer.
     Each tool is ground from solid tungsten-carbide by precision automatic machinery assuring exact contours and dimensions as well as perfect concentricity.

     Specials: The tool shapes and sizes listed below are considered stock tools, as they are the ones most commonly used. For particular operations, however, other shapes, or other sizes in the shapes listed, can easily be furnished upon receipt of your specifications.

Teeth: Standard cut tools have the following numbers of teeth per inch of circumference (more or fewer teeth can be furnished if desired).

Cuts Available:

*STANDARD CUT (List Price)
*Furnished unless otherwise specified

DOUBLE CUT
(List Price)

DIAMOND CUT (List + 20%)

FAST MILLCUT (List + 20%)

SHANKS:
1/4" diam. × 1-1/4" or more long, to give maximum of 2-1/4" overall length.

($20.00
Minimum Billing)

Solid Carbide Rotary Burs
- FOR SLOT CLEANING -

     Proven to be one of the handiest tools for getting at those hard-to-reach spots in armature and stator slots.  These special extra long and extremely hard tungsten carbide cutting tool cut right through and remove flash welds and other hard obstructions easily.  These tungsten carbide burs perform best at higher speeds in the 18,00 to 25,000 r.p.m. range, such as provided by the grinders shown under ( Rotary Burs / Grinders, Hand, Air / Electric).  The 4" or 6" Length × 1/4" diameter Solid Carbide Burs are generally recommended for slot cleaning.  Occasionally situations arise where a longer length bur or a slightly larger diameter are required.  In these situations we do offer carbide burs brazed onto longer steel shanks, as listed under (Rotary Burs / Carbide, Burs / Long Carbide Burs with Steel Shanks), with either 1/4" or 3/8" diameter heads.

Solid Carbide Burs ground from solid carbide rod.  Available with 1/4" diameter heads × 4" or 6" lengths, with 1/4" diameter shanks:

Solid Carbide Rotary Burs with Steel Shanks
Brazed to steel shanks.  Available with 1/4" or 3/8"  diam. heads, in various overall lengths,
and 1/4" diam. shanks:

If the size you need isn't listed, please ask for a quotation.
Also see "Burs, High Speed Steel / Finning Burs" for longer High Speed Steel burs.

Carbide Bur Sets in the above 6 shapes are available in 8 different sizes
as indicated below and as detailed under Standard and Small Burs.