Starrett Steel Parallels - 384 Series
Hardened and ground to close limits. They are indispensable for inspection and layout work or for various setups on drill presses, milling and grinding machines, shapers, etc. Furnished in pairs, 6″ length, they are made from a special grade of tool steel, hardened and accurately ground on the 4 sides. In tool rooms or machine shops, several pairs of these parallels will be of great value.