Replace your worn tiller tines with these Boron Steel Italian made replacement tines for Gearmore N180 series tillers. This listing is for Twenty One (21) each left hand tines code 4818223 and right hand tines code 4818222. SHAPE: C H: 128 mm / 5-1/16 in. L: 192 mm / 7-9/16 in. BOLT: 14.5 mm / 9/16 in. SPACING: 55 mm / 2-3/16 in. WIDTH: 80 mm / 3-1/8 in. THICKNESS: 7mm / 1/4 in.