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Simonds half-round machinist file 4in natural finish double-cut safe edges boxed

Simonds

Simonds 73316000 Half Round File 4in tool storage

SKU CH-FHCP-FBQEW

Half-round machinist file with double-cut faces and safe edges, smooth-cut for aluminium, brass, bronze, steel and tin, 4 in length, supplied in a box

  • Smooth 46-72 TPI cut finishes aluminium, brass and steel cleanly
  • Half-round profile reaches flat and curved surfaces with one tool
  • Double-cut faces remove material fast while safe edges protect shoulders
  • Rigid 4-inch body keeps control on detailed bench work
  • Natural finish resists corrosion for long workshop life

Simonds 73316000 Half Round File

The Simonds 73316000 is a 4-inch American pattern machinist file with a half-round profile. It is built for metalworkers who need to smooth flat surfaces and enlarge curved cutouts in aluminum, brass, bronze, steel and tin. The double-cut face and safe edges allow controlled material removal without damaging adjacent shoulders. The natural finish body ships in a protective box.

Smooth-Cut Upgrade Over Bastard Files

This file replaces coarser bastard or second-cut files when the job calls for a finer surface finish before polishing or assembly. The jump is worth it when fitting precision parts or cleaning up lathe work where tooth marks must be minimal. It is not for heavy stock removal on thick sections or for rapid shaping of soft woods and plastics where aggressive teeth are needed.

Capacity for Fine Detail Work

The 46 to 72 teeth per inch across the 4-inch length give ample headroom for finishing small radii, keyways and gear teeth. The 1/8-inch thickness and 7/16-inch width let it reach inside narrow slots and concave profiles. It runs out on large surface areas where a longer file cuts faster and on very hard alloys that demand a dedicated diamond or ceramic abrasive.

Highlights

  • Smooth 46-72 TPI cut finishes aluminium, brass and steel cleanly
  • Half-round profile reaches flat and curved surfaces with one tool
  • Double-cut faces remove material fast while safe edges protect shoulders
  • Rigid 4-inch body keeps control on detailed bench work
  • Natural finish resists corrosion for long workshop life

Specifications

BrandSIMONDS

Questions about this item

How wide is the 4 in half-round file at its broadest point?

The file is 7/16 in wide at its broadest point, with a thickness of 1/8 in.

Does the Simonds 73316000 file require any handle installation before use?

The file ships without a handle; a tang is provided so you can fit a standard machinist handle of your choice.

When will the double-cut teeth on this smooth-cut file need replacement?

Replace the file once the 46–72 teeth-per-inch double-cut surfaces no longer remove material cleanly from aluminum, brass, bronze, steel or tin.

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