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

Martindale Carbide Rotary Burs
- SMALL DIAMETER CARBIDE ROTARY BURS -

Carbide, 3/32" Diam. Shank, 1-1/4" Overall Length

Tool No. XA-3/32 XB-3/32 XC-3/32 XD-3/32 XF-3/32 XH-3/32 XJ-3/32 XT-3/32
Diam. Cut 3/32" 3/32" 3/32" 3/32" 3/32" 3/32" 3/32" 3/32"
Length Cut 3/8" 3/8" 1/4" 1/4" 1/4" 3/32" 1/8" 1/8"
Catalog Number CABUXA332 CABUXB332 CABUXC332 CABUXD332 CABUXF332 CABUXH332 CABUXJ332 CABUXT332
Solid Carbide, 1/8" Diam. Shank, 1-1/2" Overall Length
Tool No. XA-1/8S XA-1/8 XB-1/8S XB-1/8 XC-1/8 XD-1/8 XF-1/8 XH-1/8S XH-1/8 XJ-1/8 XT-1/8 XV-1/8 XS-1/8 XG-1/8
Diam. Cut 3/32" 1/8" 3/32" 1/8" 1/8" 1/8" 1/8" 3/32" 1/8" 1/8" 1/8" 1/8" 1/8" 1/8"
Length Cut 7/16" 9/16" 7/16" 9/16" 1/2" 1/2" 1/2" 3/32" 1/8" 7/32" 3/16" 1/4" 60° 90°
Catalog Number CABU
XA18S
CABU
XA18
CABU
XB18S
CABU
XB18
CABU
XC18
CABU
XD18
CABU
XF18
CABU
XH18S
CABU
XH18
CABU
XJ18
CABU
XT18
CABU
XV18
CABU
XS18
CABU
XG18
Solid Carbide, 1/8" Diam. Shank, 1-1/2" Overall Length
Tool No. LA-3 LB-3 LC-3 LD-3 LF-3 LH-3 LJ-3 LT-3 LV-3
Diam. Cut 3/16" 3/16" 3/16" 3/16" 3/16" 3/16" 3/16" 3/16" 3/16"
Length Cut 1/2" 1/2" 1/2" 1/2" 1/2" 5/32" 9/32" 1/4" 3/8"
Catalog Number CABULA3 CABULB3 CABULC3 CABULD3 CABULF3 CABULH3 CABULJ3 CABULT3 CABULV3
Solid Carbide Head, Steel Shank, 1/8" Diam. Shank, 1-1/4" Overall Length
Tool No. KA-4 KB-4 KC-4 KD-4 KF-4 KH-4 KJ-4 KT-4
Diam. Cut 1/4" 1/4" 1/4" 1/4" 1/4" 1/4" 1/4" 1/4"
Length Cut 1/2" 1/2" 1/2" 1/2" 1/2" 7/32" 3/8" 1/4"
Catalog Number CABUKA4 CABUKB4 CABUKC4 CABUKD4 CABUKF4 CABUKH4 CABUKJ4 CABUKT4
Solid Carbide, 3/16" Diam. Shank, 2" Overall Length
Tool No. XA-3/16 XB-3/16 XC-3/16 XD-3/16 XF-3/16 XH-3/16 XJ-3/16 XS-3/16 XG-3/16
Diam. Cut 3/16" 3/16" 3/16" 3/16" 3/16" 3/16" 3/16" 3/16" 3/16"
Length Cut 1/2" 1/2" 1/2" 1/2" 7/16" 5/32" 9/32" 60° 90°
Catalog Number CABUXA316 CABUXB316 CABUXC316 CABUXD316 CABUXF316 CABUXH316 CABUXJ316 CABUXS316 CABUXG316
Solid Carbide Head, 1/4" Diam. Shank, 2" Overall Length
Tool No. RA-4 RB-4 RC-4 RD-4 RF-4 RH-4 RJ-4 RT-4
Diam. Cut 1/4" 1/4" 1/4" 1/4" 1/4" 1/4" 1/4" 1/4"
Length Cut 5/8" 5/8" 5/8" 5/8" 1" 7/32" 3/8" 5/16"
Catalog Number CABURA4 CABURB4 CABURC4 CABURD4 CABURF4 CABURH4 CABURJ4 CABURT4

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:

Part No.

Catalog Number

RB4-04 CABURB404
RB4-06 CABURB406
RC4-04 CABURC404
RC4-06 CABURC406
RD4-04 CABURD404
RD4-06 CABURD406
RH4-04 CABURH404
RH4-06 CABURH406
RJ4-04 CABURJ404
RJ4-06 CABURJ406

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:

Part No. Catalog Number
RB4-06S CABURB406S
RB4-08 CABURB408
RB4-09 CABURB409
RB4-10 CABURB409
RB4-12 CABURB412
RB4-15 CABURB415
RB4-18 CABURB418
RB6-04 CABURB604
RB6-06 CABURB606
RB6-08 CABURB608
RB6-10 CABURB610
RB6-12 CABURB612

Part No. Catalog Number
RC4-06S CABURC06S
RC4-08 CABURC408
RC4-10 CABURC410
RC4-12 CABURC412
RC4-15 CABURC415
RC4-18 CABURC418
RC6-04 CABURC604
RC6-06 CABURC606
RC6-08 CABURC608
RC6-10 CABURC610
RC6-12 CABURC612

Part No.

Catalog Number

RD4-06S CABURD406S
RD4-08 CABURD408
RD4-10 CABURD410
RD4-12 CABURD412
RD4-15 CABURD415
RD6-04 CABURD604
RD6-06 CABURD606
RD6-08 CABURD608
RD6-10 CABURD610
RD6-12 CABURD612

Part No. Catalog Number
RH4-06S CABURH406S
RH4-08 CABURH408
RH4-10 CABURH410
RH4-12 CABURH412
RH4-15 CABURH415
RH4-18 CABURH418
RH6-04 CABURH604
RH6-06 CABURH606
RB6-08 CABURH608
RB6-10 CABURH610
RB6-12 CABURH612

Part No. Catalog Number
RJ4-06S CABURJ406S
RJ4-08 CABURJ408
RJ4-10 CABURJ410
RJ4-12 CABURJ412
RJ4-15 CABURJ415
RJ4-18 CABURJ418
RJ6-04 CABURJ604
RJ6-06 CABURJ606
RJ6-08 CABURJ608
RJ6-10 CABURJ610
RJ6-12 CABURJ612

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 ROTARY BUR SETS -

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.

Sets Bur Diameter Shank Diameter Burs Included In Set Catalog Number
X-3/32 3/32" 3/32" XA-3/32, XB-3/32, XC-3/32, XD-3/32, XH-3/32, XJ-3/32 CABUX332
X-1/8 1/8" 1/8" XA-1/8, XB-1/8, XC-1/8, XD-1/8, XH-1/8, XJ-1/8 CABUX18
X-3/16 3/16" 3/16" XA-3/16, XB-3/16, XC-3/16, XD-3/16, XH-3/16, XJ-3/16 CABUX316
R-4 1/4" 1/4" RA-4, RB-4, RC-4, RD-4, RH-4, RJ-4 CABUR4
R-3/8 3/8" 1/4" RA6, RB6, RC6, RD6, RH6, RJ6 CABUR38
R-1/2 1/2" 1/4" RA8, RB8, RC8, RD8, RH8, RJ8  CABUR12
L3 3/16" 1/8" LA-3, LB-3, LC-3, LD-3, LH-3, LJ-3 CABUL3
K4 1/4" 1/8" KA-4, KB-4, KC-4, KD-4, KH-4, KJ-4 CABUK4
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