Description (8 blades, 8 bolts, 8 nuts & 8 washers) Replaces original Pt No; GT2139. DIMENSIONS. Length: 7-21/64″ (186mm) Width: 2-3/8″ (60mm) Holer: 5/8″ (15mm) DESCRIPTION. *Suits Greenfield Anniversary 28″ (710mm), 30″ (760mm), & 32″ (812mm) cut models *Also suits Evolution 30″(760mm), 32″(813mm) & 34″(863mm) cut models including 200, 1, 2 & 3. *Also suits Tractor 30″ (760mm) 11.30MKII cut models. *Stepped and low fluted blade. *Left hand cut. SAFETY TIP. Replace blades, nuts, bolts and washers together to prevent metal fatigue failure and engine problems.