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Workshop Heaven Hand Stitched Square Rasp 150mm No.4 (38tcm)

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Workshop Heaven Hand Stitched Square Rasp 150mm No.4 (38tcm)


Square rasps are invaluable for forming angular shapes from round ones – forming a square or arched hole from a drilled one is the classic example.

The 150mm square rasp has a tapered tip and a slender 5mm square section, so it is easy to get started into holes of 7mm or larger. The corners are finely toothed so it will cut right into a corner leaving the smallest possible radius. A popular modification is to grind the teeth off one of the four faces, giving you the option to cut both sides simultaneously or one at a time as you work up to a corner.

Each Workshop Heaven hand stitched rasp begins life as a forged and annealed blank of high carbon tool steel is carefully ground and ‘fined’ to a smooth surface before being strapped to a soft anvil to have their teeth individually raised or ‘stitched’ one by one with a special punch and a curved filemakers hammer. 

The handles are turned from English walnut with brass ferrules to a 200 year old Holtzappfel pattern, individually fitted and set by hand for a comfortable, elegant and secure grip.

  • Shoulder to tip: 150mm
  • Overall length: 290mm approx
  • Face width: 5mm tapering to 3mm at the tip
  • Coarseness: 38 teeth per square cm (medium)

Rasp Care
In order to keep your rasps clean and free from corrosion we recommend removing any clogging from the surface with a stiff bristled brush and applying a few drops of metalguard ultra liquid corrosion inhibitor after each use. Store your rasps in such a way that they cannot touch or rub against each other.

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