We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
A 12 inch round double cut file with natural finish in a box

Simonds

Simonds 73403000 Round File Double-Cut 12in

SKU CH-SSCJ-A89NT

A 12-inch round double-cut machinist file with 25 teeth per inch for smoothing aluminium, brass, bronze, steel and tin

  • Smooth finish on aluminium, brass, bronze, steel and tin with double-cut teeth
  • 25 teeth per inch give fast material removal on 12 in round profile
  • Double-cut on both faces and edges speeds up filing work
  • Rigid construction keeps shape during heavy use
  • Taper towards point improves control in tight spaces

Simonds 12in Round Double-Cut File

This 12-inch round machinists file features a double-cut pattern on both face and edge, giving four cutting edges for rapid material removal on aluminum, brass, bronze, steel and tin. The American-pattern tool tapers toward the point and has a smooth-cut coarseness rated at 25 teeth per inch. A natural finish body and rigid construction suit general workshop use.

Limits of Double-Cut Smooth Coarseness

The 25-teeth-per-inch double-cut pattern removes stock quickly but leaves a surface that typically needs a finer single-cut file or abrasive for finishing passes. The 1/2-inch diameter round profile restricts access to holes or curves smaller than that size. The 12-inch length without tang provides leverage for hand filing but cannot reach deep internal features.

25 Teeth Per Inch Decides Suitability

At 25 teeth per inch this file sits in the smooth-cut range, making it the right choice when a clean surface is needed after rough shaping. Buyers who need aggressive stock removal on harder alloys should select a bastard or second-cut file instead. Builders who require a finer finish for precision fitting will need a dead-smooth or Swiss-pattern alternative.

Highlights

  • Smooth finish on aluminium, brass, bronze, steel and tin with double-cut teeth
  • 25 teeth per inch give fast material removal on 12 in round profile
  • Double-cut on both faces and edges speeds up filing work
  • Rigid construction keeps shape during heavy use
  • Taper towards point improves control in tight spaces

Specifications

BrandSIMONDS

Questions about this item

Should I choose the 12 inch length or a different size for my application?

This Simonds 73403000 round file is supplied in a single 12 inch length with a 1/2 inch diameter, so there is no alternative size to select for this model.

What does the 25 teeth per inch figure mean when I am filing steel or aluminium?

The 25 teeth per inch smooth double-cut pattern removes material evenly on steel, aluminium, brass, bronze and tin while leaving a finer surface than coarser files.

Does the American pattern double-cut design limit the file to certain metals or tasks?

The American pattern double-cut with four cutting edges works on the listed metals and tapers toward the point for shaping round openings and concave surfaces.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.