High Quality Bits
Leigh Brand carbide-tipped router bits are among the best you can buy. They are made with high quality C2 and C3 micro grain carbide for long bit life. Each bit is honed to a fine edge with 600 grit diamond wheels for smooth, efficient routing. All shanks are 1-3/4" long to handle the thickness of the finger assembly or accessory template. Leigh router bits are manufactured to ISO 9002 standards.
Shank Size
Most Leigh dovetail jigs include 8mm shank router bits. They are considerably stronger and stiffer than 1/4" shanks as the have nearly 60% more mass, allowing for smoother cuts and faster feed rates with a greater margin of safety. To use 8mm shanks, you will require a router with either an 8mm collet. Or a 1/2" collet router with a Leigh 1/2" to 8mm collet reducer, which are supplied with most Leigh dovetail jigs.
Through Dovetail Bit Selection
All Leigh “D” series dovetail jigs use 8° dovetail bits for through dovetail tails and one of three straight bits for the pins. See cutting depth charts below. The dovetail bit’s working depth must be equal to or slightly greater than the thickness of the pin board or drawer front. Always choose the smallest dovetail bit relative to the pin board thickness, along with the matching straight bit, for that hand-cut look. Choose your bit(s) in the Bit Selection chart below.
| Through Dovetail Bit Selection | |||||||||
|
DOVETAIL BITS
ROUT THE TAILS  |
|||||||||
| Leigh Bits for Through Dovetails |
A Overall Diameter |
B** Cutting Depth Range |
C Shank Diameter |
D Shank Length |
E Overall Length |
F Angle |
Use with Straight Bit No. |
Use with eBush* or Guide Bush(GB) |
Price |
|---|---|---|---|---|---|---|---|---|---|
50-8
|
1/4" | Up to 1/4" | 8mm * | 1 3/4" | 2" | 8° | 140-8 or 170C ** | e7 or 7/16" |
$31.00 |
60-8
|
5/16" | Up to 3/8" | 8mm * | 1 3/4" | 2 1/8" | 8° | 140-8 or 170C ** | e7 or 7/16" |
$31.00 |
70-8
|
3/8" | 1/4" to 1/2" | 8mm * | 1 3/4" | 2 1/4" | 8° | 140-8 or 170C ** | e7 or 7/16" |
$31.00 |
75-8
|
7/16" | 3/8" to 5/8" | 8mm * | 1 3/4" | 2 3/8" | 8° | 140-8 or 170C ** | e7 or 7/16" |
$31.00 |
80-8***
|
1/2" | 1/2" to 13/16" | 8mm * | 1 3/4" | 2 9/16" | 8° | 140-8 or 170C ** | e7 or 7/16" |
$31.00 |
90
|
11/16" | 5/8" to 1" | 1/2" | 1 3/4" | 2 3 /4" | 8° | 160 or 180C ** | 5/8" |
$35.00 |
100
|
13/16" | 1" to 1 1/4" | 1/2" | 1 3/4" | 3" | 8° | 150 or 177C ** | 5/8" |
$35.00 |
|
STRAIGHT BITS
ROUT THE PINS  |
|||||||||
| Leigh Bits for Through Dovetails |
A Overall Diameter |
B** Cutting Depth Range |
C Shank Diameter |
D Shank Length |
E Overall Length |
F Angle |
Use with Straight Bit No. |
Use with eBush* or Guide Bush(GB) |
Price |
140-8***
|
5/16" | Up to 1" | 8mm* | 1 3/4 " | 2 3/4" | 0° | - | e7 or 7/16" |
$31.00 |
170
|
5/16" | 1" | 5/16" (8mm)* | 2" | 3" | 0° | 1/2" | e7 or 7/16" |
$29.00 |
170C**
|
5/16" | 1 1/8" | 5/16 (8mm)* | 1 7/8" | 3" | 0° | 1/2" | e7 or 7/16" |
$62.00 |
150
|
7/16" | Up to 1 1/4 " |
1/2" | 1 3/4 " | 3" | 0° | - | 5/8" |
$31.00 |
177C**
|
7/16" | Up to 1 1/4" |
1/2" | 1 3/4 " | 4" | 0° | - | 5/8" |
$99.00 |
160
|
1/2" | Up to 1 1/4" |
1/2" | 1 3/4 " | 3" | 0° | - | 5/8" |
$31.00 |
180
|
1/2" | Up to 1 1/4" |
1/2" | 1 3/4 " | 3 1/2" | 0° | - | 5/8" |
$62.00 |
180C**
|
1/2" | Up to 1 1/4" |
1/2" | 1 3/4 " | 3 1/2" | 0° | - | 5/8" |
$99.00 |
* All 8mm Shank Bits requires a 172-8 collet reducer
** Note that the dimension B is not the exact cutting depth of the carbide. All Leigh bits have slightly more carbide cutting depth than is required.
*** Bits No. 80-8, 140-8 (and 120-8) are included with the D4R pro.
* The e7 eBush is included with the D4R Pro
** 170C, 177C and 180C: Carbide Spiral up-cut bits are stiffer, rout cleaner and stay sharp longer
Note: All Leigh jigs require a router fitted with a guidebush. Click here for Guidebush Selection.
Item no. 172-8
$16.00
Half-Blind Dovetail Bit Selection
In half-blind joints, pins and tails are routed with the same dovetail bit at the same depth of cut. The bit angle determines the nominal depth of cut, therefore, a bit of a given angle must cut at or very near a specific depth in order to make pins and tails fit together properly. Choose a half-blind bit with a cutting depth at least 1/8” less than the pin board thickness. Leigh offers five half-blind bits to suit board thicknesses from 1/2” to 7/8” or greater. For rabbeted or lipped drawers, choose a bit with a cutting depth slightly less than the rabbet’s shoulder depth.
| HALF-BLIND DOVETAIL BIT SELECTION | |||||||||
|
DOVETAIL BITS ROUT
THE TAILS AND PINS  |
|||||||||
| Leigh Bits for Half-Blind Dovetails |
A Overall Diameter |
B** Cutting Depth: Variable |
B** Cutting Depth: Single Pass |
C Shank Diameter |
D Shank Length |
E Overall Length |
F Angle |
Use with eBush* or Guide Bush(GB) |
Price |
|---|---|---|---|---|---|---|---|---|---|
|
80-8***
|
1/2" | 3/4" | 27/64" | 8mm* | 1 3/4" | 2 9/16" | 8° | e7 or 7/16" |
$31.00 |
101-8
|
1/2" | 5/8" | 23/64" | 8mm* | 1 3/4" | 2 3/8 " | 10° | e7 or 7/16" |
$31.00 |
112-8
|
1/2" | 1/2" | 19/64" | 8mm* | 1 3/4" | 2 5/16 " | 12° | e7 or 7/16" |
$31.00 |
120-8***
|
1/2" | 7/16" | 1/4" | 8mm* | 1 3/4" | 2 1/4" | 14° | e7 or 7/16" |
$31.00 |
128-8
|
1/2" | 3/8" | 3/16" | 8mm* | 1 3/4" | 2 1/8" | 18° | e7 or 7/16" |
$31.00 |
* All 8mm Shank Bits require a 172-8 collet reducer
** Note that the dimension B is not the exact cutting depth of the carbide. All Leigh bits have slightly more carbide cutting depth than is required.
*** Bits No. 80-8, 120-8 (and straight bit 140-8) are included with the D4R pro.
* The e7 eBush is included with the D4R Pro
Note: All Leigh jigs require a router fitted with a guidebush. Click here for Guidebush Selection.
Item no. 172-8
$16.00
and D4R, D4, D3 and D1258(R)
Includes 8mm and 1/2” shank router bits: Through dovetail bits 50-8(1/4”), 60-8(5/16”), 70-8(3/8”), 75-8(7/16”), 80-8(1/2”), 90(11/16”), 100(13/16”), 140-8(5/16”), 150(7/16”), 160(1/2”) and half-blind bits 80-8(8°), 101-8(10°), 112-8(12°), 120-8(14°), 128-8(18°). Also includes a 1/2” to 8mm collet reducer for 8mm shank bits (172-8), a 5/8” guide bushing for 1/2” shank bits (716C), and a FREE bit storage box.
For use with the D4R Pro / D4R / D4 / D3 24" / D1258 / D1258R
Bit Sets offer savings over buying individually!
Item no. 5116-8
$449.00
Includes 8mm and 1/2” shank router bits: Through dovetail bits 50-8(1/4”), 60-8(5/16”), 70-8(3/8”), 75-8(7/16”), 90(11/16”), 100(13/16”), 150(7/16”), 160(1/2”) and half-blind bits 101-8(10°), 112-8(12°), 128-8(18°). Also includes a 1/2” to 8mm collet reducer for 8mm shank bits (172-8), a 5/8” guide bushing for 1/2” shank bits (716C), and a bit storage box.
For use with the D4R Pro / D4R / D4 / D3 24" / D1258 / D1258R
Bit Sets offer savings over buying individually!
Item 2411-8
$349.00
Includes Through Dovetail bits (8°) 50-8(1/4”), 60-8(5/16”), 70-8(3/8”), 75-8(7/16”) and Half-blind bits 101-8(10°), 112-8(12°), 128-8(18°) and a FREE bit storage box.
For use with the D4R Pro / D4R / D4 / 24" D3 / D1258 / D1258R / D1600 and Super Jigs
Bit Sets offer savings over buying individually!
Item 1607-8
$229.00