Bits for R9 Plus Dovetail & Box Joint Jig

Router Bits for the R9 Plus Dovetail & Box Joint Jig

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
The R9 Plus is shipped with an 8mm shank dovetail bit (80-8) and a 1/2" shank straight bit (160). The 8mm shank bit requires a 1/2" collet router with a 1/2" to 8mm collet reducer (172-8), included with the jig. Five optional bits (70-8, 75-8, 140-8, 170 and 170C) also have 8mm shanks.

Two optional straight bits, 166 (166C) 3/16" bit and 173C (173-500) 3/8" bit are required for box joints on the R9 Plus.
The 166 (166C) 3/16" bit requires a router with a 1/4" collet.
The 173C 3/8" bit requires a router with a 1/2" collet and a 1/2" - 3/8" collet reducer (172-375), as shown under the R9 Plus Bit Selection chart below.
The 173-500 3/8" bit requires a router with a 1/2" collet but does not require a reducer as it has a 1/2” shank.

Through Dovetail & Box Joint Bit Selection

The R9 Plus uses 8° dovetail bits for through dovetail tails and one of two straight bits for pins. The dovetail bit's working depth (see column B in the R9 Plus Bit Selection Chart below) must be equal to or slightly greater than the thickness of the pin board or drawer front. Always choose the smallest dovetail bit (column A) relative to the pin board thickness for that look of hand-cut elegance. Use the matching straight bit and template guidebush indicated in the chart.

Note: All router bits require a guidebush. Click here for Guidebush Selection.

Leigh BitsA
Bit Diameter
Max. Cutting Depth
Shank Diameter
Shank Length
Overall Length
Use With Straight Bit No.Use with
Use with
Collet Reducer
Joint TypePrice

Carbide Tipped


3/8"1/4" to 1/2"8mm1 3/4"2 1/4 "8140-8, 170, 170Ce10172-8Dovetail

$29.00 CDN

Carbide Tipped
7/16"3/8" to 5/8"8mm1 3/4"2 3/8"8140-8, 170, 170Ce10172-8Dovetail

$29.00 CDN


Carbide Tipped
1/2"1/2" to 13/16"1/2"1- 3/4"2 9/16"8160, 180, 180Ce10172-8Dovetail

$29.00 CDN




3/16"5/8"1/4"1- 3/4"2-7/8"--e10-Box

$27.00 CDN


Solid Carbide
3/16"5/8"1/4"1- 3/4"2-1/2"--e10-Box

$38.00 CDN


Carbide Tipped
5/16"up tp 1"8mm [5/16"]1 3/4"2- 3/4 "--e7172-8Dovetail

$29.00 CDN


5/16"1"5/16" (8mm)2"3"--e71/2"Dovetail

$30.00 CDN


Solid Carbide


5/16"1 1/8"5/16" (8mm)1- 7/8"3"--e71/2"Dovetail

$57.00 CDN

Solid Carbide
3/8"1"3/8"1- 3/4"3"--e10172-375Box

$58.00 CDN


Carbide Tripped


1/2"up to 1 1/4"1/2"1- 3/4"3"--e10-Dovetail

$29.00 CDN


1/2"1-1/4"1/2"1- 3/4"3-1/2"--e10-Dovetail

$45.00 CDN


Solid Carbide
1/2"up to 1 1/4"1/2"1- 3/4"3-1/2"--e10-Dovetail

$97.00 CDN


  • Bits 80-8, 160 are included with R9 Plus
  • Spiral upcut bits rout cleaner & faster, leaving a smoother finish

Note: All Leigh jigs require a router fitted with a guidebush. Click here for Guidebush Selection.

One 1/2" to 8mm collet reducer

Required for all 8mm shank bits (70-8, 75-8, 80-8, 140-8, 170 and 170C).

Item no. 172-8

$13.00 CDN

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One 1/2" to 3/8" collet reducer
1 1/4" long.
Required for 3/8" shank bits (173C).Item no. 172-375

$14.00 CDN

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R9 Plus Accessory Kit


Accessory Kit - R9 Plus
Includes 3/16"(166) and 3/8"(173-500) HSS Spiral Upcut bits for Box Joints, 3/8" (70-8), 7/16"(75-8) Through Dovetail bits, 5/16"(140-8) straight bit for Half Pitch Through Dovetails, e-Bush (e7) for Half Pitch Through Dovetails and one 1/2" to 3/8" collet reducer (172-375).

For use with the R9 Plus

Item no. ACR9

A savings of US$17 / CDN$17


$144.00 CDN


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