Using state-of-the-art technology and highly skilled operators,
Proto-Cutter, Inc. provides solutions for tough tooling problems.

Proto-Cutter specializes in manufacturing carbide tipped, solid carbide, and high-speed steel coolant-fed reamers in standard and special designs for precision hole finishing. Standard cutting diameter tolerances are maintained within +.00015″/-.00015″ unless otherwise specified.

In addition to our standard design right-hand spiral/right-hand cut reamers, we offer the following special flute configurations:
• Straight flute
• Left-hand spiral/right-hand cut
• Left-hand spiral/left-hand cut
• Right-hand spiral/left-hand cut

All of our reamers are manufactured to provide ease of set-up and operation. We can provide you with reamers capable of extended life, reamers that will produce an exceptionally high finish (minimizing the need for secondary operations), or a reamer that will give you a quality finish and provide you with long tool life. In addition, Proto-Cutter reamers eliminate chatter and other problems associated with conventional reamers.

Because we custom sharpen each and every reamer to its exact specified profile and tolerance, you are able to achieve hole size to within .0005”. Hole straightness can be maintained to within .0002”, depending on the hole’s depth and prior operation. With Proto-Cutter reamers, you can achieve a surface finish of 32 RMs, or even better in some circumstances. By achieving this high level of finish, our reamers eliminate the need for timeconsuming grinding, honing or burnishing operations. That means more holes reamed per year, increasing your productivity and dramatically reducing your cost per hole.

Carbide reamers, end mills and custom tooling
Custom carbide reamers and end mills

Reamers, End Mills and Custom Tooling

Carbide-Tipped Coolant-Fed Reamers
Standard Carbide-Tipped Coolant-Fed Reamers
Carbide-Tipped Size Down Reamers
Carbide-Tipped Chamfer Grind Reamers
Retip Carbide Tipped Coolant-Fed Reamers

Solid Carbide Coolant-Fed Reamers
Standard Solid Carbide Coolant-Fed Reamers
Solid Carbide Size Down Reamers
Solid Carbide Chamfer Grind Reamers

High-Speed Steel Coolant-Fed Reamers
Standard High-Speed Steel Coolant-Fed Reamers
High Speed Steel Size Down Reamers
High Speed Steel Chamfer Grind Reamers

Custom Tooling
Custom Chucking & Pin-Float Reamers
Custom Step Reamers
Custom Form Tools
Custom Profile Cutters
Special End Mills
Custom Step Drills
Custom Double Margin Drills
Custom Porting Tools
Custom Key Cutters
Custom Saws
Custom Tapered & Radius Tooling
Spot Weld Drills

101 South Liberty Avenue.
Suite 1
Freeport, IL 61032
Toll: 800.851.2874 Fax: 815.233.9279

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