>> Star Blue Turbo Wet Core Bore TBOWL - General purpose, moderate steel More Views Product Description Good quality diamond and good coring value. Serrated segment for faster coring. Size Part Number Catalog Number 2" BTSTB2000 32955 2-1/2" BTSTB2500 10186 3" BTSTB3000 10237 3-1/2" BTSTB3500 10238 4" BTSTB4000 10266 6" BTSTB6000 10305 4-1/2" BTSTB4500 10272 5" BTSTB5000 10290 8" BTSTB8000 10307 10" BTSTB10000 10323 12" BTSTB12000 23251 * Required Fields