SuperMill company started out as a regrind shop for end mills and drills in 1990. Then, they were known as Primary Cutter Grinding. Being in Connecticut, their customers were predominantly involved in the Aerospace, Defense and Firearm Manufacturing Industries. They modified and reconditioned a lot of tools for the larger New England shops serving these demanding fields. Over the years, as a general practice, Super Mill counseled customers and modified their tools, to help maximize productivity. Eventually, a number of customers asked them to design and fully manufacture tools for them. They did. And with great results! That success led them to introduce our own line of high performance carbide end mills under the label Supermill in 2003.