Leigh D4R Pro, User Manual

Page: 79 / 92

Bit Selection
D4R Pro - Appendix II
Optional router bits for variably spaced through and half-blind dovetails.
8° Dovetail Bit for Tails
The pins
➀
must fit into the pin sockets
➁
. Therefore the
dovetail bit’s depth of cut
B
must be equal to or a little
greater than the pin board thickness
➂
.
Measure
the pin board thickness
➂
Select
the dovetail bit with the correct depth of cut
B
from
the following pages (bits must be 8° for through dovetails).
Straight Bit for Pins
The matching straight bit is listed on the charts with the
dovetail bit.
Dovetail Bit Angle
All through dovetail bits must be 8
º
. This angle matches
the D4R Pro guide finger pin angle. If you try to use a
different angle of dovetail bit, there will be a mismatch
between the pins routed at 8
º
.
Guidebush
All 8mm shank through dovetail bits listed in this appendix
work with the
e7- Bush ( 7 ⁄
16
" OD [11,1mm]) supplied
with your Leigh jig, or any
7
⁄
16
" OD [11,1mm] guidebush.
The optional Leigh 716C guidebush or standard
5
⁄
8
" OD
[15,9mm] guidebush is used with
1
⁄
2
" [12,7mm] shank
bits. No other guidebush sizes can be used for through
dovetails. See page 70.
Shank Selection
The Leigh D4R Pro comes with one through dovetail bit
and one straight bit, with 8mm shanks, plus a
1 ⁄
2
"[12,7mm]
to 8mm collet reducer. The reducer
➃
simply slides into
the
1
⁄
2
"[12,7mm] collet
➄
of your router and the 8mm
shank bit is inserted into the collet reducer. The collet is
tightened as normal. The collet reducer is not required with
1
⁄
2
" [12,7mm] shank bits.
Note:
➃
is a collet reducer, not a collet
➄
.
The reducer
does not replace the collet, it slides directly into your
collet.
Pin Board
Tail Board
2
1
B
3
4
5
71
Through Dovetail
Bit Selection