How Were Inlays on Pool Cues Performed Before the CNC Machine?

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  Key takeaways
• 2
  Why hand work held on so long
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  The bench toolkit for inlays on pool cues
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  What went into the pocket and why
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  Laying out the pattern before any cut
• 6
  Fitting and gluing without a fixture
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  How inlays on pool cues were done, step by step
• 8
  Hand work versus a modern CNC machine

Cue making is a low-volume trade. A shop might finish forty forearms a year, each one different. That volume never justified the fixturing a CNC machine needs, so the work stayed in the hands of one maker who knew the whole sequence.

The forearm is a tapered cylinder, usually maple, sometimes ebony or rosewood. Points and windows sit on that curve, often at an angle to the axis. Clamping a tapered, finished, thin-walled part without crushing it is its own problem. Hand work solved that by holding the cue in a steady rest and cutting with a tool the maker controlled directly.

The materials pushed the same way. Mother-of-pearl, abalone, bone, and nickel silver all behave differently under a cutter. Shell chips along the grain. Bone cuts clean one direction and tears the other. A maker adjusted feed and angle by feel, second by second, in a way that early NC controllers could not.

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  Low volumeFewer than a hundred forearms a year per shop.
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  Tapered geometryCurved, angled pockets are hard to clamp and index.
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  Mixed materialsShell, bone, and metal each need their own cutting feel.

The core set was small. A marking scribe or a sharp pencil laid out the pattern. A jeweler's saw with a 4/0 to 6/0 blade cut shell and metal. Flat and round chisels from 1 mm to 6 mm cleared pockets. A small hand router or a router plane took the floor of the pocket down to depth. Needle files dressed the edges.

Depth control was the hard part. Most makers set a stop collar on the chisel or wrapped tape on the blade so it could only sink so far. Some used paper shims: cut the pocket, drop a shim in, test the veneer, and remove shims until the piece sat flush.

Sharpening mattered more than the tool brand. A chisel honed to a 25° primary bevel with a 30° micro-bevel paring shell will leave a clean edge. The same chisel at 20° will dig in and chip the shell. Makers touched up edges every few pockets, not every few days.

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  Scribe and sawJeweler's saw, 4/0 to 6/0 blades for shell and metal.
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  Chisels1 mm to 6 mm flat and round, honed at 25° with a 30° micro-bevel.
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  Router planeTakes the pocket floor down in controlled passes.
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  Shims and stopsPaper shims or tape wraps set final depth.

Mother-of-pearl was the standard for points and diamonds. It cuts cleanly with a fine saw, holds a polish, and shows figure at shallow angles. Abalone gave more color but was thinner and more brittle, so it was often backed with a thin wood or fiber layer before cutting.

Bone and ivory cut easily and took fine detail. Ivory use is now heavily restricted, and most modern work substitutes bone, synthetic ivory, or stabilized wood. Nickel silver and brass were used for rings and thin lines because they hold a crisp edge and take a polish.

Wood inlays were common too. Ebony, rosewood, and holly gave contrast without the chipping risk of shell. A maker would pick the material to match the cut: brittle materials went into simple shapes, tough materials into sharp points and long tapers.

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  Mother-of-pearlClean cuts, good polish, standard for points.
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  AbaloneColorful but brittle, usually backed before cutting.
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  MetalNickel silver and brass for rings and fine lines.
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  WoodEbony, rosewood, holly for contrast without chipping.

Every cut started with a layout. The maker marked the centerline, then stepped off points with dividers. A four-point cue needed eight matching positions, four up and four down, each mirrored. Errors here showed up later as a lopsided cue.

Most makers cut a paper template first and wrapped it around the forearm to check spacing. Once the template fit, they transferred the lines with a scribe. The scribe line was shallow but it guided the saw and the chisel through the first pass.

The layout also set depth. Points near the joint were usually shallower than points near the handle because the forearm wall was thinner there. A maker wrote the depth on the template next to each position so the bench work stayed consistent.

The veneer was cut slightly oversize, then pared down with a file until it dropped into the pocket with light finger pressure. A fit that needed a hammer would split the shell. A fit that fell out on its own was too loose and would show a glue line.

Glue was epoxy or a slow-set hide glue. Epoxy filled small gaps and held shell well. Hide glue was reversible, which mattered when a piece had to come out for repair. The maker coated both surfaces, pressed the piece in, and checked flush with a straightedge.

After cure, the surface was leveled with a fine file and then sanded through 400, 600, and 1200 grit. The cue was then sealed and polished. Any pocket that sat proud showed as a bump in raking light, so most makers checked with a lamp held at a low angle before final finish.

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  Oversize then pareFile the veneer until it drops in with finger pressure.
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  Glue choiceEpoxy for gap fill, hide glue for reversibility.
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  Flush checkStraightedge and raking light before final finish.