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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).

Diam. Teeth per Inch Diam. Teeth per Inch
1/8" 31 1/2" 16
1/4" 25 5/8" 16
3/8" 20 3/4" 13
See: [Rotary Burs / Burs, Carbide / Small Burs], for recommended speeds and information on regrinding.
CYLINDER
No End Cut
  Cutting Surface  
Tool No. Diam. Length Catalog
Number
RA2 1/8" 5/8" CABURA2
RA4 1/4" 5/8" CABURA4
RA6 3/8" 3/4" CABURA6
RA8 1/2" 1" CABURA8
RA10 5/8" 1" CABURA10
RA12 3/4" 1" CABURA12
(with end-cut - add 10%)

Cuts Available:

INVERTED CONE

  Cutting Surface  
Tool No. Diam. Length Catalog
Number
RT4 1/4" 5/16" CABURT4
RT8 1/2" 1/2" CABURT8
RT12 3/4" 5/8" CABURT12
(with end-cut - add 10%)
CYLINDER
Radius End
  Cutting Surface  
Tool No. Diam. Length Catalog
Number
RB2 1/8" 1/2" CABURB2
RB4 1/4" 5/8" CABURB4
RB6 3/8" 3/4" CABURB6
RB8 1/2" 1" CABURB8
RB10 5/8" 1" CABURB10
RB12 3/4" 1" CABURB12


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

CONE

  Cutting Surface    
Tool No. Diam. Length Incl.
Angle
Catalog
Number
RF4 1/4" 1" 10░ CABURF4
RF6 3/8" 5/8" 28░ CABURF6
RF8 1/2" 7/8" 28░ CABURF8
RF10 5/8" 1" 31░ CABURF10
TREE
Radius End
  Cutting Surface  
Tool No. Diam. Length Catalog
Number
RC4 1/4" 5/8" CABURC4
RC6 3/8" 3/4" CABURC6
RC8 1/2" 1" CABURC8
RC10 5/8" 1" CABURC10
RC12 3/4" 1" CABURC12


DOUBLE CUT
(List Price)

CONE
14░ Included Angle
  Cutting Surface    
Tool No. Diam. Length Incl.
Angle
Catalog
Number
RL4 1/4" 5/8" 14 CABURL4
RL5 5/16" 7/8" 14 CABURL5
RL6 3/8" 1-1/6" 14 CABURL6
RL8 1/2" 1-1/8" 14 CABURL8
RL10 5/8" 1-5/16" 14 CABURL10
RL12 3/4" 1-1/2" 14 CABURL12
TREE
Pointed End
  Cutting Surface  
Tool No. Diam. Length Catalog
Number
RD4 1/4" 5/8" CABURD4
RD6 3/8" 3/4" CABURD6
RD8 1/2" 3/4" CABURD8
RD10 5/8" 1" CABURD10
RD12 3/4" 1" CABURD12


DIAMOND CUT (List + 20%)

CONE
60░ and 90░

  Cutting Surface    
Tool No. Diam. Length Incl.
Angle
Catalog
Number
RS6 3/8" 5/16" 60 CABURS6
RS8 1/2" 7/16" 60 CABURS8
RS10 5/8" 9/16" 60 CABURS10
RS12 3/4" 11/16" 60 CABURS12
RG6 3/8" 3/16" 90 CBAURG6
RG8 1/2" 1/4" 90 CABURG8
RG10 5.8" 5/16" 90 CABURG10
RG12 3/4" 3/8" 90 CABURG12
BALL
  Cutting Surface  
Tool No. Diam. Length Catalog
Number
RH2 1/8" 3/32" CABURH2
RH4 1/4" 7/32" CABURH4
RH6 3/8" 5/16" CABURH6
RH8 1/2" 7/16" CABURH8
RH10 5/8" 9/16" CABURH10
RH12 3/4" 11/16" CABURH12


FAST MILLCUT (List + 20%)

FLAME
  Cutting Surface  
Tool No Diam. Length Catalog
Number
RV5 5/16" 3/4" CABURV5
RV8 1/2" 1-1/4" CABURV8
RV10 5/8" 1-7/16" CABURV10
RV12 3/4" 1-5/8" CABURV12
OVAL
  Cutting Surface  
Tool No. Diam. Length Catalog
Number
RJ4 1/4" 3/8" CABURJ4
RJ6 3/8" 5/8" CABURJ6
RJ8 1/2" 7/8" CABURJ8
RJ10 5/8" 1" CABURJ10
RJ12 3/4" 1" CABURJ12

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

($20.00
Minimum Billing)

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