Perfect Tools is the leading manufacturer and supplier of “Double Fillet Cove Bits – 312” from Ahmedabad, India. Technical Specification [ Bearing Size: D-13 x B-5 x Thick-4 ] Code No.Wood Size (mm)Dia (mm)Shank (mm)Price 31215x15378692 31319x19438846 31422x224981077 31525x255481231