This determines the center bore of your cone for mounting on your machine
Steelman 5-Piece 1/2-Inch Drive Torque Extension Set
Fits ALL Balancers with 28mm
WB150400091
Low Profile Taper - Range: 2.15"-2.58" - for 40mm Shafts Rema Valves This determines the center boreLow Profile Taper Range: 2. 15" 2. 58" 40mm Bore Hole Fits the following wheel balancer brands: 40mm Shaft Models Accuturn 1200, 1220, 1250, 1400, 1420, 1450, 1500, 1520, 1550, 1650, 1820, 1850 (5100, 5323, 5500, 5600 With Serials 51 0623 To 51 1457) Bear 80 100, 80 303 Beisbarth All Models Bosch All Models CEMB All Models 1995 And Later, (Excluding Truck Models) Coats (Previously Upgraded to 40mm Shafts) 700, 800, 825, 850, 925, 950, 1000, 1025,