Length 23.2cm x Width 2.4cm x Height 14.7cm
a- Length 23.2cm x Width 2.4cm x Height 8.4cm
b- Length 15.5cm x Width 2.1cm x Height 0.9cm
c- Length 18.1cm x Width 0.8cm x Height 0.3cm
d- Length 12.3cm x Width 2.2cm x Height 0.8cm
e- Length 14.3cm x Width 0.8cm x Height 0.3cm
Wooden dado grooving plane comprised of five parts, a wooden rectangular body with a metal rectangular portion that raises and lowers (a), a large wooden wedge piece (b), a large iron (c), a smaller wooden wedge piece (d), and a smaller forked iron (e). The large wedge and large iron, (b) + (c), fit together at an angle inside of the main body piece and extend out of the top while the iron is exposed out of the bottom. The smaller wedge and smaller iron, (d) + (e), also fit together in another hollow portion of the main body, beside where the metal is attached on the outside. The smaller iron, (e), is also exposed at the bottom and helps clear the way for the large iron blade. Stamped on the heel edge is "I BLOWER", and " 5 16". Stamped on the toe edge is "I BLOWER", and "H. SHARP DUBLIN".
Dado planes are used to cut dado grooves, strict rectangular grooves with straight bottoms and shoulders. A double spur is installed in front of the cutting iron, and cuts two trenches on either side of the blade. This way, the blade can dig out material with minimal tear-out and exceptionally clean lines. This plane was traditionally used for preliminary work in wood floors or to cut grooves for bookcase shelves. When working across the grain, the artist must first make a reverse stroke to ensure the double spur cuts through the surface of the wood.
