Boring Machinery Manufacturers
| Frontier Broach Corp (Troy, MI) |
| G A Machine Co (Detroit, MI) |
| George, Lester B Co (Mount Gilead, OH) |
| Harbrook Tool Inc (Novi, MI) |
| Hennig Broach & Tool Co Inc (Riverdale, IL) |
| Heritage Hone & Gage Inc (Commerce Twp, MI) |
| Hines Manufacturing Co (Warren, MI) |
| ID Finishers Inc (Glen Ellyn, IL) |
| Illinois Broaching Co (Schiller Park, IL) |
| J & J Carbide Tool Co (Watsontown, PA) |
| J & S Tool Inc (Chicago, IL) |
| Jackson Broach & Tool Inc (Michigan Center, MI) |
| Jackson Tumble Finish Corp (Jackson, MI) |
| K F Honing Co (Pardeeville, WI) |
| Kennametal Inc (Bedford, PA) |
| Knight Carbide (Chesterfield, MI) |
| L S I Steel Processing (Chicago, IL) |
| Lamerson USA (Royal Oak, MI) |
| Lap-Rite Industries (Chicago, IL) |
| Lemmon & Snoap Co Inc (Grand Rapids, MI) |
| Lloyd Tool & Manufacturing (Burton, MI)
Manufacturer |
| Mall Tooling & Engineering Inc (Mount Clemens, MI) |
| Marietta Mining Tools (Marietta, OH) |
| Master Manufacturing (New Cumberland, PA) |
| Master Tool Corp (Grand River, OH) |
