Replace your worn tiller tines with these Boron Steel Italian made replacement tines for Gearmore N-155series tillers. This listing is for Eighteen (18) 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.