This versatile 1/2 inch shank groover set offers grooving widths of 3.2mm 4.0mm 4.8mm and 6.3mm. It is infiniteley variable from 6.6mm to 18mm in 0.1mm increments. A jointing facility using the bearing is also possible.
Set comprises of four 2 wing groovers with 7.94mm (5/16 inch) bore and an arbor which may be used singly or together to produce a wide range of groove widths. One ball bearing comes as standard.
This set can also be used to tongue and groove 9mm to 22mm board.

Specification:
D=47.6 mm
C2=3.2 to 18 mm
B=22 mm
E=12.8 mm
OL=76.2 mm
Shank Diameter=1/2 inch
SP-QUAD/18 =3.2 mm
SP-QUAD/532 =4 mm
SP-QUAD/316 =4.8 mm
SP-QUAD/14 =6.3 mm

Includes:
4 x 2 Wing groovers
1 x Arbor
1 x Bearing