Handle & Finishing · Finish

Handle Pins

Handle pins are metal rods or tubes that pass through the tang and scales to reinforce a handle. They work with epoxy rather than instead of it, and a well-set pin ends flush, nearly invisible, and matched to the fittings.

StageFinishRank#23
Handle Pins — illustration

Specifications

At a glance
TypesSolid pins or tubes
MaterialBrass, stainless, nickel silver
Diameter3–6 mm
FunctionFasten and reinforce scales
SpacingEven, 20–40 mm apart
FinishGround and sanded flush

Technical parameters

Typical values for this class of tool
Pin diameter3–6 mm
Hole sizeMatch pin, snug fit
Pin count2–4 typical per handle
PeeningLight, to lock scales
MaterialBrass, 304 stainless, nickel silver
Spacing20–40 mm apart
Tube wall1–2 mm
FinishFlush, polished
Handle & FinishingBeginner$ typical cost

Overview

Handle pins are metal rods that pass through the tang and the handle material to hold the scales in place and add strength. They come as solid pins, often brass, stainless, or nickel silver, and as tubes, which are hollow and can be peened or left open to show the tang through the handle. Pins work with epoxy, not instead of it: the glue bonds the scales, and the pins resist shear and keep the handle from shifting under impact. Their size, spacing, and finish affect both the strength and the look of the handle, and a well-set pin is flush and nearly invisible.

When choosing, match the pin material and diameter to the handle and the look you want. Brass is traditional and easy to peen and polish; stainless is stronger and does not tarnish; nickel silver sits between the two in color and hardness. Pin diameter usually runs from about 3 to 6 millimeters, with larger pins for heavier handles. Spacing should be even and avoid the thin, unsupported areas of the tang. Tubes need to be cut square and can be countersunk and peened to lock the scales, while solid pins are simply cut, inserted, and ground flush. The pins should match the guard and bolsters for a unified look.

In the workflow pins are installed during handle assembly, after the scales are fitted and drilled and just before or during gluing. The holes must line up through the tang and both scales, which is easiest if the scales are drilled together with the tang in place. Pins are then glued and driven in, and once the epoxy cures the ends are ground and sanded flush with the handle. Peening the ends slightly expands them and locks the scales, but too much peening splits the handle material. A handle with well-set pins feels solid; proud, gappy, or misaligned pins are among the most visible flaws in a finished knife.

Where it fits

This tool belongs to the Finish stage of the build.

ForgeShapeGrindHeat TreatFinish

Safety

Before you use thisRead the manufacturer’s instructions. The points below are the hazards that come up most often with this class of tool.
  • Wear eye protection when drilling and grinding pins, since a spinning pin or drill can throw metal fragments.
  • Clamp the handle when drilling so the bit cannot grab and spin the work into your hand.
  • Deburr pin ends and avoid over-peening, which can split the handle material and send a sharp edge toward your fingers.

Using it well

  • Drill the scales with the tang clamped between them, so the pin holes line up perfectly on the first try.
  • Peen the pin ends lightly to lock the scales, but stop before the handle material starts to crack or split.
  • Match pin material to the guard and bolsters; mismatched metals make an otherwise clean handle look assembled from spare parts.
  • Cut pins slightly long, glue and seat them, then grind flush after the epoxy cures so the ends sit perfectly flat.

Compatible steels

Steels this tool is commonly used with, and which suit its working range.

Related processes

Handle FittingFinishingPolishing