1.6-64 mm Adjustable Hand Reamer Machine Cutting Tools with HSS size range reamer. This tool is designed for precise bore finishing across a wide range, reducing tool changes and improving fit. Size range and material - Size steps: 6 7 8 9 10 11 12 13 15 17 19 21 26 29 29 30 mm - Diameter ranges: 6-6.5 mm / 6.5-7 mm / 7-75 mm / 7.75-8.5 mm / 8.5-9.25 mm / 9.25-10 mm / 10-10.75 mm / 10.75-11.75 mm / 11.75-12.75 mm - Material: High Speed Steel (HSS) What this offers - Function: adjustable hand reamer for precise hole sizing and finishing - Performance: enables smooth bore finishes with controlled material removal - Size coverage: supports a broad spectrum of hole diameters without multiple tools - Durability: HSS construction provides long service life in metalworking tasks Key benefits - Wide adjustable range minimizes tool changes and setup time - Accurate sizing for bearing fits, shafts, and machine components - Simple manual operation with reliable, repeatable results Applications and use scenarios - Reaming engine blocks or transmission housings to final bore diameter - Finishing bearing housings and shaft bores in metal fabrications - General repair, maintenance, or project work where precise hole size is required