GRINDING BURS
TUNGSTEN CARBIDE BY
STANDARD 1/4” SHANKS
SA
Cylinder Shape
SB
Cylinder End Cut
SC
Cylinder Radius End
Head Dia Head Lgth
Part No
Head Dia Head Lgth
Part No
Head Dia Head Lgth
Part No
1/4
5/8
1/4
5/8
1/4
5/8
3/8
3/4
3/8
3/4
3/8
3/4
1/2
1
1/2
1
1/2
1
SD
Ball Shape
SE
Oval Shape
SF
Tree Shape Radius
Head Dia Head Lgth
Part No
Head Dia Head Lgth
Part No
Head Dia Head Lgth
Part No
1/4
7/32
1/4
3/8
1/4
3/4
3/8
5/16
3/8
5/8
3/8
3/4
1/2
7/16
1/2
7/8
1/2
1
SG
Tree Shape
SL
14º Taper Radius End
SM
Cone Shape
Head Dia Head Lgth
Part No
Head Dia Head Lgth
Part No
Head Dia Head Lgth
Part No
1/4
5/8
1/4
5/8
1/4
1/2
3/8
3/4
3/8
1-1/16
1/4
1
1/2
1
5/8
1-3/16
1/2
7/8
LOCKSMITH DRILLS
CARBIDE TIPPED BY
12
Deci.
Flute
Overall
Dia.
Size
Lgth
Lgth
Part No
.
»
For non-precision drillling
1/8
.1250
1-1/2
2-3/4
of hardened steel and safes.
3/16
.1875
1-7/8
3
»
Ideal for drilling and extracting
1/4
.2500
2-1/2
4
broken hardened bolts.
(ie. grade 5 and grade 8).
5/16
.3125
2-1/2
4
3/8
.3750
4
6
12-14
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