Kerfgrid
Machine shop Checked Oct 8, 2026

Keystone Machine and Fab

Grafton, OH · prototype to production

keystonemachineandfab.comRequest a quote
About

Machine shop in Grafton, Ohio that makes CNC machined parts, custom winding tooling, and G10, GPO3, and G11 electrical insulators. Serves electric motor rebuilders and aerospace and industrial customers, and also offers large-format routing, reverse engineering from customer samples, and in-house assembly and testing.

Summary written by Kerfgrid from keystonemachineandfab.com.

Processes

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Materials
Aluminum, copper, brass and bronze, plastics
Industries
Aerospace, general industrial
Volumes
Prototype to production
Holds
±0.0002"
On the shop floor
6 machines listed on keystonemachineandfab.com
  • Doosan DNM 750
  • Doosan Puma 4100
  • Haas ST-30
  • Haas GR-712 Gantry
  • Laguna CNC Router
  • Mitutoyo height gauges
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