Style

Application

Size range

Standard
tolerance

1200

For most applications.

1.8mm to
13.2

+0.008mm
-0

1200R

Right-hand spiral flutes. For ductile and abrasive materials, blind holes. Do not use on holes with interruptions unless the material is very soft.

1.8mm
to 9.6

+0.008mm
-0

1200L

Left-hand spiral. Gives better finish on hard materials, including heat-treated steels and chilled castings. Use for holes with interruptions such as keyways, perforations, etc. Chip will clog on blind holes.

1.8mm
to 9.6

+0.008mm
-0

1300

For most applications.

2.9mm
to 9.8

+0.008mm
-0

1300R

Right-hand spiral flutes. For ductile and abrasive materials, blind holes. Do not use on holes with interruptions unless the material is very soft.

2.9mm
to 9.8

+0.008mm
-0

1300L

Left-hand spiral. Gives better finish on hard materials, including heat-treated steels and chilled castings. Use for holes with interruptions such as keyways, perforations, etc. Chip will clog on blind holes.

2.9mm
to 9.8

+0.008mm
-0

SFR

Straight flute straight shank. For all general applications. Carbide tip runs full length of flute for maximum regrinds. Also available with expandable flutes to allow many regrinds.

6.05mm
to 38.00

+0.008mm
-0

TFR

Straight flute taper shank. For general applications. Full length tip for deep holes and many regrinds. Also available with expandable flutes to allow many regrinds.

6.05mm
to 52.00

+0.008mm
-0

SRSR

Right hand helix flutes. For ductile materials and for blind holes, where the swarf should be drawn back from the cutting edge. The carbide tip is not as long as the straight flute style. In straight shank only.

6.05mm
to 38.20

+0.008mm
-0

SLSR

Left hand helix flutes. For holes with interruptions and for harder materials that require a negative rake for a better finish, such as heat treated steels and chilled irons. Use on through holes only since the swarf is forced to the head of the tool. In straight shank only.

5.60mm
to 38.20

+0.008mm
-0