Freud 03-140 single flute straight router bit Guia De Referência
Router Bits: Technical Information
Anti-Kickback Limitator
– The projection at the front of the
gullet which limits the maximum tooth bite to the safe limit for
the bit design reducing the effects of kickback.
Brazing
– The method used to attach the carbide tips to the
bit body. Both the carbide tip and the body are heated above
the melting point of the silver layers of the brazing foil forming
a strong bond between the parts.
Gullet
– The cut out area in the body in front of each carbide
tip for chip removal.
Hook Angle
– The angle the face of the carbide tip makes
with a line projecting radially from the center of the shank.
Relief Angle
– The angle the tip of the carbide tooth makes
away from the cutting edge to a line tangent to the bit circum-
ference.
Shear Angle
– The angle that the cutting edge makes with a
line parallel to the shank of the bit.
Shank
- The precision ground, cylindrical part of the bit that is
held in the router collet.
Solid Carbide Bit
– A router bit formed entirely of carbide,
including the shank, body and cutting edge. Found primarily in
small diameter and spiral router bits.
Pilot Bearing
– The part of the bit designed to guide the bit
and control the depth of cut. Often used to rout the edges of
irregularly shaped objects and for following templates.
Rail And Stile (Cope And Stick) Bits
–Used to produce
frames for panel doors. The stile or stick cut refers to the pro-
filed inner edge of the frame and either a groove to accept a
panel or a rabbet for glass. The rail or cope cut is the mating
glue joint produced on the ends of the rails.
Round Nose (Core Box) Bits
– End cutting bits that will
plunge cut and produce decorative, fluted grooves.
Flush Trim (Pattern) Bits
– Straight cutting bits that include
a pilot bearing that is the same diameter as the cutter. Often
used for laminate work and template routing.
Spiral Bits
– Special straight cutting bits that are formed
with helical flutes for more efficient chip ejection. The helical
shape of the flutes also results in shear angles that produce a
smoother surface finish.
Compression Bits
– Straight cutting bits that combine both
down shear angles and up shear angles for excellent finish on
both the top and bottom of the cut.
Raised Panel Bits
– Produce a decorative profile on the edge
of a wood panel while reducing the edge thickness to fit into
the groove of a stile and rail frame.
Back Cutters
– Secondary cutters used in combination with
raised panel bits to create double-sided panels that are in the
same plane with both the front and back of the stile and rail
frame.
(25.4 mm)
(31.75 mm)
(57.15 mm)
Up To
To
To
To
1"
1-1/4"
2-1/4"
1"
1-1/4"
2-1/4"
3-1/2"
(25.4 mm)
(31.75 mm)
(57.15 mm)
(88.9 mm)
24,000
18,000
16,000
12,000
CUTTING DIAMETER (D)
IMPORTANT NOTE: Do not exceed the maximum speed marked on the tool
SUGGESTED ROUTER SPEEDS
MAXIMUM R.P.M.
Key Router Bit Dimensions
h
m
n
d
R
A
h
m
n
®
D
d(2)
d(1)
B
C
D
A
h
H
R (2)
R (1)
®
H
- Carbide Height
- Minor Height
- Small Diameter
- Angle
- Radius
A
B
C
D
H
- Shank Diameter
- Bearing Diameter
- Cutting Depth
- Overall Diameter
- Overall Height
Glossary Of Terms