Lettering in stone is one of the oldest crafts that’s still practised in essentially the same way it was practised three thousand years ago. The Romans cut Trajan’s column with iron chisels, a wooden mallet, a stone surface, and a steady hand. Today’s working letter-cutters use better steel, sometimes a pneumatic tool, sometimes diamond, but the fundamental gesture — guided edge of metal applied to stone, supported by the carver’s accumulated muscle memory — has not changed.

This is a working guide for someone wanting to cut letters in stone, whether for a memorial inscription, a building dedication, a sculptural lettering piece, or a sandstone garden plaque. I’m focusing on what’s actually used in studios today, with notes on the trade-offs.

The Hand Tools

The fundamental kit for cutting letters by hand is small. A range of flat chisels (sometimes called firmers in this context) in widths from about 6mm up to 25mm. A range of point chisels for roughing out. A round-edged tool — the round chisel — for the curved interior cuts. A mallet, traditionally wood (lignum vitae or beech), heavier than you’d think reasonable for the work — 700g to 1kg is standard.

For lettering specifically, the most-used chisel is a flat chisel of around 12-15mm width, with a slight skew on the cutting edge so it can be drawn into corners cleanly. A good letter-cutter will own a dozen of them at slightly different widths and angles, used in rotation as work demands. The skew angle on the cutting edge is something every carver eventually develops a personal preference for — some prefer a steeper skew for tight serifs, others a shallower angle for cleaner long strokes.

Sharpening is constant. A letter chisel that’s gone dull in the middle of a stroke leaves a rough edge that you can’t easily fix afterward. Most letter-cutters sharpen multiple times per session, on a fine waterstone or on a leather strop loaded with polishing compound for the final edge. The Choice reviews don’t cover specialty stone chisels but the technique is similar to chisel sharpening covered in joinery contexts.

Pneumatic Tools

Pneumatic letter-cutting tools — typically a small handpiece running on a 30-50 PSI compressor line, with replaceable bits — have become common in commercial monumental masonry over the last fifty years. They’re faster than hand work and can produce excellent results in skilled hands. They are not a replacement for hand technique; they’re a supplement to it.

The pneumatic letter-cutter holds the tool against the stone with similar gestures to a hand chisel, but the tool is delivering rapid taps from a piston rather than the carver’s mallet. This means the carver’s hand is doing positioning rather than impact, which is faster and less fatiguing for long inscription jobs. It also means the tip selection matters enormously. A blunt or wrongly-shaped pneumatic bit will produce ragged edges that no amount of skill can rescue.

For Australian studios, brands like Cuturi (Italian) and Trow & Holden (American) are the standard. They’re not cheap. A complete pneumatic letter-cutting kit with a range of bits and a small compressor will set a studio back $4,000-$8,000 depending on what you’re putting together. Worth it for anyone doing serious volume.

Layout: The Step Most People Underestimate

The actual cutting is maybe 40% of letter inscription work. The other 60% is layout. Designing the inscription on paper, working out spacing and proportion, transferring the design to the stone surface accurately, and committing to it before the chisel touches the surface.

A traditional layout method is to draw the inscription full-size on paper, refine spacing by eye and by ruler, then transfer to the stone using carbon paper or pounce powder through a pricked stencil. Modern studios commonly print full-size from a CAD or vector design, fix the print to the stone, and pounce or transfer through that.

The transferred design is then drawn freehand in pencil or with a fine permanent pen, refining the curves and serifs in situ on the stone surface. The pencil lines are what the chisel follows, and they should be exactly correct because once cut, they’re cut.

Letterforms vary by tradition. Roman capitals (the standard for most monumental work) have specific proportions and serif treatments. Italic and humanist lowercase letters, blackletter for some heritage work, and modern sans-serif designs all have their place. Eric Gill’s writings on stone lettering, while dated, are still useful reading. The collected work of David Kindersley and his successors at the Cardozo Kindersley Workshop in the UK is the modern reference for English-language inscription. Some of the historical and contemporary lettering archives held at Trove and the State Library collections include excellent Australian examples worth studying.

V-Cut, the Standard Technique

Most cut lettering is V-cut: the letter strokes are cut as V-shaped grooves into the stone surface, with the depth and angle producing the visible letterform when light catches it. The V-cut has practical advantages — it sheds water, doesn’t trap dirt as much as other forms, and reads clearly across the centuries. It’s also visually elegant; the play of light in the cut groove gives the letter a quality flat painted lettering can’t match.

Cutting a V-cut letter starts with the centre line of the stroke, pencilled accurately on the stone. The chisel is held at an angle (typically around 45 degrees from the surface for the side walls of the V) and worked along the centre line, alternating sides to develop the groove progressively. The outside edges of the letter are kept crisp and the centre line is kept dead straight (or smoothly curved, for round letters).

A skilled hand carver can cut around 30-50 letters per day in clean stone, depending on the size and the difficulty of the design. A pneumatic worker might cut twice that.

Stone Selection for Lettering

Not all stone takes letters well. Best results are usually from fine-grained sedimentary stones — Bath stone, Portland, Hawkesbury sandstone here in Australia, or fine limestones. Coarser stones like granite are workable but require harder tools and produce less crisp edges. Marble takes lettering beautifully but suffers in outdoor applications because of acid rain.

Hawkesbury sandstone, locally available from quarries in the Sydney basin, is an excellent inscription stone — fine grained, consistent, takes a clean cut, and weathers gracefully. Many of the heritage Sydney inscriptions you’ll see on government buildings are cut into this stone.

The Long Skill

Lettering in stone takes years to learn properly. Five years to be competent. Twenty years to be excellent. There are no shortcuts. The good news is that the skill, once acquired, is almost entirely independent of technology shifts. A carver trained in 1970 can still work with the same fundamental gestures today, on the same kinds of stones, with substantially the same results.

That’s a rare thing in modern trades, and it’s a quiet pleasure of the work.