Length 24.0cm x Width 3.5cm x Height 14.3cm
a- Length 24.0cm x Width 3.5cm x Height 8.6cm
b- Length 16.0cm x Width 2.6cm x Height 0.8cm
c- Length 17.6cm x Width 0.7cm x Height 0.6cm
Grooving plane comprised of three parts, a wooden rectangular body with two metal portions on the sole to form the grooving profile (a), a wooden wedge piece that tapers to a point at the bottom and is rounded at the top (b), and an iron with an angled blade (c). The wedge and the iron fit together inside of an angled cutout through the middle of the plane, and the wedge holds the iron in place as the iron cuts the wood below. Stamped on the toe of the plane is "I BLOWER", and "J.P. MILLENER & Co. KINGSTON". Stamped on the heel is "I BLOWER", and "7/8".
Grooving planes are used to cut straight grooves, or rabbets, into a working piece. They are traditionally used for drawer bottoms or rear walls. They can be used in conjunction with a corresponding tonguing plane, which creates two parallel slits in a piece of wood. These create two pieces that fit together perfectly for joining work. Other names include dado planes, ploughing planes and matching planes when combined with a tonguing plane.