Leigh rtj400 - Half Pitch through Dovetails

29
29
PIN BOARDPIN BOARDTAIL BOARDTAIL BOARD
E
D
B
F
A
C
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"
Depth of Cut
140-8
50-8
Bit No.
60-8 70-8 75-8
1/8"
3/8"
5/8"
7/8"
Denotes Depth of Cut Range
HALF-PITCH THROUGH DOVETAIL BIT CUTTING DEPTH
50-8 60-8 70-8 75-8 140-8
Bits (Optional)
e10 Guide bushing
RTJ400 OPERATION
CHAPTER 8
Half Pitch
Through Dovetails
Note: Optional Leigh bits and the e7 guide bushing are required in order
to make half pitch through dovetails. See Step 8-2 below and pages 3 to 6
for complete details of optional items, router table requirements and the
RTJ400 Accessory Kit.
8-1 Getting Started
Review this drawing and joinery
terms to get a clear understanding
of how the boards fit together.
A
Pins
B
Pin sockets
C
Half-pins
D
Half-pin sockets
E
Tails
F
Tail sockets
8-2 Bits, Guide Bushings and Collet Reducer
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.
(Optional)
e7 Guide bushing
for 8mm bits (Optional)
Collet reducer, 172-8
Half pitch through dovetail tails are routed using the included e10 guide bushing and one of four optional 8mm
through dovetail bits.
Note: 8mm bits must be used with a 8mm collet or 172-8 (1/2" to 8mm) collet reducer.
Half pitch through dovetail pins are routed with the optional e7 guide bushing and 140-8 or equivalent straight bit.
The e7, all five bits and the 172-8 are available individually or in the RTJ400 Accessory Kit (ACRTJ) at leighjigs.
com. See bit specs on page 4.