Has 4" Center Hole And Dual 4 Bolt Pattern For 1/2" Bolts 5" And 5-1/4" Circle. Features: Moderately Good Penetration Very Effective At Slower Speeds Good Cutting And Tilling Action Interchange  820082C17  B45-1120  820-082C  W17402  W174131Wfe  W174512 Bolt Holes 4 Net Weight (Lbs) 11.00
