A reader says this is the smallest open-end wrench in the world, with 0.005 in. across the flats on one end and 0.010 in. across the other. The human hair next to the wrench gives a comparative size. The wrench was made with an Agie Vertex EDM using 0.0008 in. tungsten wire. Marsh Syverson President, Engineering Techniques, Inc. San Jose, Calif.

Our new assembly floor. Here, we build, cycle, and test our internal and external grinding machines for shipment all over the world.

Steve Mansur, manager
Service Network Inc.
Worcester, Mass.
 

Len Tamasi founded Boston Centerless in 1957 with one machine in this garage.

Nancy Hunter
Boston Centerless
Woburn, Mass.

My one-man shop is in its eighth year and business is pretty good.

Bill Zaremba
Zaremba Machine
Florence, Minn.