Leigh rtj400 - Chapter 12 3;16 Box (Finger) Joints

59
59
3/16"
1/2"
1/4"
3/4"
0"
1"
166
166C
Depth of Cut
Item No. (HSS)
Bit Diameter
Item No.
(Solid Carbide)
BOX JOINT BIT CUTTING DEPTH
1/8"
3/8"
5/8"
7/8"
C
RTJ400 OPERATION
CHAPTER 12
3/16" Box (Finger) Joints
IMPORTANT SAFETY NOTE
Before using your Leigh RTJ400 you must have
completed the preparatory steps listed in the
previous pages, including reading the jig safety
recommendations in Chapter 3.
12-1 Getting Started
Review the drawing below. Symmetrical joints have pins
A
on both edges of one board, and sockets
B
on both edges of the mating
board. Asymmetrical joints have a pin
C
on one edge and a socket
D
on the other edge of each board.
12-2 Bits, Guide Bushing and Stop Rod
" box joints are routed with the optional " Leigh straight bit 166 or 166C, the e10 guide bushing (eBush), and the stop rod
(for positioning the sidestop only). They can be routed in board thicknesses up to the maximum cutting depth of the bit, in this
case, ⅝" [15.9mm].
SYMMETRICAL
ASYMMETRICAL
166 166C
(optional) (optional)
A
A
B
B
D
e10 eBush
(guide bushing)
stop rod
(for positioning sidestop)