23
23
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.
e10 Guide bushing
(eBush)
1/4"
1/2"
3/4"
All through dovetail bits have 8˚ angles. All carbide bit heights are slightly greater than maximum depth of cut listed.
1"
160
50-8
Bit No.
60-8 70-8 75-8 80-500
1/8"
3/8"
5/8"
7/8"
Depth of Cut Range
THROUGH DOVETAIL BIT CUTTING DEPTH
Blockers
50-8 60-8 70-8 75-8 80-500 160
E
D
B
F
A
C
PIN BOARDPIN BOARDPIN BOARDPIN BOARD
TAIL BOARDTAIL BOARDTAIL BOARDTAIL BOARD
F
A
C
PIN BOARDPIN BOARDPIN BOARDPIN BOARD
TAIL BOARDTAIL BOARDTAIL BOARDTAIL BOARD
7-1 Getting Started
Review this drawing and joinery
terms to get a clear understanding
of how the boards fit together.
Note: The RTJ400 can rout Full Pitch and Half Pitch Through Dovetails (see Chapter 8 for Half Pitch Through Dovetails). Instructions
for routing Through Dovetails on thinner boards are identical with the exception of depths of cut and template positions
for frame pins. Optional Leigh bits can be used with these instructions. See Step 7-2 below and pages 3 to 6 for complete details
of optional items, router table requirements and the RTJ400 Accessory Kit.
7-2 Bits, Guide Bushing, Collet Reducer and Blockers
A
Pins
B
Pin sockets
C
Half-pins
D
Half-pin sockets
E
Tails
F
Tail sockets
RTJ400 OPERATION
CHAPTER 7
Through Dovetails
for 8mm bits (Optional)
Collet reducer, 172-8
Through dovetail
tails
are routed using the included e10 guide bushing, blockers and the 80-500 through dovetail
bit, or one of four optional 8mm through dovetail bits.
Note:
8mm bits must be used with an 8mm collet or 172-8
(1/2" to 8mm) collet reducer. Through dovetail pins are routed with the included 160 ½" straight bit. The 8mm
dovetail bits and 172-8 are available individually or in the RTJ400 Accessory Kit (ACRTJ) at leighjigs.com. See bit
specs on page 4.
(Optional) (Optional) (Optional) (Optional)
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