Acumac machine tools offers grinding spindles for internal grinding. These are standard spindle cartridges used on grinding machines of hmt, kirloskars, parishudh, hi life and other makes. They incorporate precision angular contact bearings of abec-7 [p4] grade of accuracy with lifetime grease lubrication. These are available in sizes ranging from 26 mm to 1200 mm. Acumac grinding spindles in all variations are in use throughout the country.