Bits, Router, Spiral bits – Bosch PR20EVSK User Manual
Page 15: Solid carbide double flute downcut spirals, Solid carbide double flute extra-long spirals, Solid carbide triple flute upcut spirals, Solid carbide triple flute downcut spirals
119
Toll Free: 877-BOSCH-99
Boschtools.com
Router
bits
Spiral Bits
A
D
C
B
A
D
C
B
Solid Carbide Double Flute Downcut Spirals
Ideal for use when chip removal needs to be pushed down and away from
the router motor. Excellent for templet cutting when downward pressure
is advantageous.
Solid Carbide Double Flute Extra-long Spirals
Suitable for use when long flute length is required. Especially useful for cutting
the front built-up edge on a countertop when a thick, smooth edge is required.
Industrial / CNC bit for high duty cycle applications
Item #
A.
Overall
Diameter
B.
Cutting
Edge Length
C.
Shank
Diameter
D.
Overall
Length
85939M
5/32"
5/8"
1/4"
2-1/2"
85940M
7/32"
1"
1/4"
2-1/2"
85941M
1/4"
1"
1/4"
2-1/2"
85942M
5/16"
1"
5/16"
2-1/2"
85943M
5/16"
1"
1/2"
3"
85944M
3/8"
1"
3/8"
2-1/2"
85945M
3/8"
1-1/4"
3/8"
3"
85948M
7/16"
1-1/4"
1/2"
3"
85949M
1/2"
1-1/4"
1/2"
3"
85951M
5/8"
1-5/8"
5/8"
3-1/2"
85952M
5/8"
2"
5/8"
4"
85953M
3/4"
1-5/8"
3/4"
4"
Item #
A.
Overall
Diameter
B.
Cutting
Edge Length
C.
Shank
Diameter
D.
Overall
Length
Spiral
85922M
1/2"
1-5/8"
1/2"
3-1/2"
Up
A
D
C
B
Solid Carbide Triple Flute Upcut Spirals
Bits work best on hard-to-route materials under reduced spindle speeds or
horsepower. The upcut yields superior chip removal and a smooth finish.
A
D
C
B
Solid Carbide Triple Flute Downcut Spirals
Ideal for penetrating hard-to-route materials under reduced spindle
speeds or horsepower. The downcut holds the material and forces chips
down during routing.
Item #
A.
Overall
Diameter
B.
Cutting
Edge Length
C.
Shank
Diameter
D.
Overall
Length
85955M
1/4"
1"
1/4"
2-1/2"
85956M
5/16"
1"
5/16"
2-1/2"
85957M
5/16"
1"
1/2"
3"
85958M
3/8"
1"
3/8"
2-1/2"
85959M
3/8"
1-1/4"
3/8"
3"
85960M
3/8"
1-1/4"
1/2"
3"
85961M
1/2"
1-1/4"
1/2"
3"
85962M
1/2"
1-1/2"
1/2"
3-1/2"
85963M
1/2"
2"
1/2"
4"
85964M
5/8"
1-1/2"
5/8"
4"
85965M
5/8"
2"
5/8"
4"
85966M
3/4"
1-1/2"
3/4"
4"
85967M
3/4"
2-1/8"
3/4"
4"
Item #
A.
Overall
Diameter
B.
Cutting
Edge Length
C.
Shank
Diameter
D.
Overall
Length
85968M
1/4"
1"
1/4"
2-1/2"
85969M
5/16"
1"
5/16"
2-1/2"
85970M
5/16"
1"
1/2"
3"
85971M
3/8"
1"
3/8"
2-1/2"
85972M
3/8"
1-1/4"
3/8"
3"
85973M
3/8"
1-1/4"
1/2"
3"
85974M
1/2"
1"
1/2"
3"
85975M
1/2"
1-1/4"
1/2"
3"
85976M
1/2"
1-1/2"
1/2"
3-1/2"
85977M
1/2"
2"
1/2"
4"
85978M
5/8"
1-1/2"
5/8"
4"
85979M
5/8"
2"
5/8"
4"
85980M
3/4"
1-1/2"
3/4"
4"
85981M
3/4"
2-1/8"
3/4"
4"