SGM-1040Insert Holder Assy. 0.85-1.4 in.(21.59-35.5mm) Fits SMALL Sunnen Style Ball Driver OnlySunnen Style Insert Holder SGM-1035 0.85-1.4 in.SKU: SGM-1040$129.00PriceQuantity*Lead Time is 5-6 WeeksPre-Order