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Triangular machinist file, natural finish, 8 inch length

Simonds

Simonds 73519000 Three Square File 8in Smooth Double Cut

SKU CH-KP5A-7G55N

Three-square machinists file with smooth double-cut faces and single-cut edges for aluminium, brass, bronze, steel and tin

  • Smooth finish on aluminium, brass, bronze, steel and tin
  • 47, 54, 57 teeth per inch for controlled material removal
  • Wavy tooth design reduces clogging during use
  • Triangular profile with three cutting edges reaches internal corners
  • 8 inch double-cut file suited to machinist applications

Simonds 73519000 Three Square File

This 8-inch machinists file is designed for metalworkers shaping aluminum, brass, bronze, steel, or tin. The triangular profile with double-cut faces and single-cut edges suits detail work on internal angles and corners. Its smooth cut coarseness leaves a finer surface ready for finishing. The rigid body tapers toward the point for access in tight spaces.

Integration into a toolkit

The natural finish and wavy tooth design reduce clogging when filing softer alloys. Supplied in a box, it stores cleanly in a tool chest or drawer without special mounting. Three cutting edges let you alternate faces to extend sharpening intervals. No power source or auxiliary equipment is required for hand operation.

Thermals, noise and power

Hand filing generates negligible heat at the workpiece and no audible motor noise. Operator effort is the only power draw, making it suitable for quiet workshops or on-site repairs. The rigid construction resists flexing, so each stroke transfers force efficiently without vibration fatigue.

Highlights

  • Smooth finish on aluminium, brass, bronze, steel and tin
  • 47, 54, 57 teeth per inch for controlled material removal
  • Wavy tooth design reduces clogging during use
  • Triangular profile with three cutting edges reaches internal corners
  • 8 inch double-cut file suited to machinist applications

Specifications

BrandSIMONDS

Questions about this item

How quickly do the 47, 54, 57 teeth per inch clog when filing soft metals like aluminium or brass?

The smooth double-cut pattern with wavy tooth design is intended to reduce clogging on aluminium, brass, bronze, steel and tin, though clearing frequency depends on pressure and material softness.

Does the file generate noticeable heat or vibration during extended hand-filing sessions?

The rigid triangular profile and natural finish transmit some vibration, but the smooth cut and single-edge style limit heat build-up during prolonged use on the listed metals.

Is a separate handle required before the 8 in three-square file can be used safely?

The file is supplied without a tang handle; a compatible machinist file handle must be fitted to the tang before use.

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