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Simonds 4in round file, natural finish, bastard cut

Simonds

Simonds 73393000 Round File 4in Bastard Cut tool storage

SKU CH-52S4-53PR7

A 4-inch round machinist file with bastard-cut double teeth for shaping aluminium, brass, bronze, steel and tin

  • 4in round file fits tight curves
  • Bastard cut removes material quickly on steel
  • Double-cut faces and edges grip workpiece
  • Natural finish resists corrosion in storage
  • 38 teeth per inch for smooth finish

Simonds 73393000 Round File 4in Bastard Cut

The Simonds 73393000 is a 4-inch American-pattern machinist's file with a round profile and bastard-cut coarseness. Its double-cut faces and edges provide 38 teeth per inch for material removal on aluminum, brass, bronze, steel and tin. The rigid file body has a natural finish and tapers toward the point for detailed work.

Replacing worn or finer files

A new bastard-cut file restores aggressive stock removal when existing files have dulled or when a smoother cut leaves too much material. The jump is worth it when shaping curved surfaces or enlarging round holes in the listed metals, where the 5/32-inch diameter and rigid taper maintain control. It does not suit work requiring a smooth finish or finer tooth counts.

Fits in a tool box or on a bench

The file ships in a box and includes a 4-inch handle for immediate use. Its compact length and insulated-free design allow storage in standard tool chests without special compartments. It frees up the need for separate handle purchases and suits machinists, maintenance technicians and metalworkers who need a ready-to-use round file for general shaping tasks.

Highlights

  • 4in round file fits tight curves
  • Bastard cut removes material quickly on steel
  • Double-cut faces and edges grip workpiece
  • Natural finish resists corrosion in storage
  • 38 teeth per inch for smooth finish

Specifications

BrandSIMONDS

Questions about this item

What size handle or holder fits the 4 in tang of the Simonds 73393000 round file?

The file has a 4 in handle length and a 5/32 in diameter tang, so a holder with a 5/32 in bore will fit.

How do you orient the Simonds 73393000 file when pushing it into a handle, and what step is often missed?

Align the tapered point first, then seat the 5/32 in tang fully; the step often missed is pushing until the shoulder contacts the handle ferrule.

When does the Simonds 73393000 round file need replacement, and what indicates wear?

Replace when the 38 teeth per inch on the double-cut surface no longer remove material cleanly from steel, aluminum or brass.

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