Why the bench is the center of the kit
Power tools get the attention, but much of the accuracy in small metal projects comes from a bench, a vise and a handful of hand tools. A hobbyist working at a bench does four things again and again: lay out the part, hold it, shape it, and check it. The tools below are organized around those four jobs. They are modest in cost, last for years if cared for, and do not need a large shop.
The vise and the bench under it
A vise holds the work so both hands are free. For metal, a heavy vise with solid steel or cast iron construction and smooth, flat jaws is generally preferred over a light hobby model, because filing and hammering put real force on it. Jaw faces are often serrated; soft jaws, which are covers made of aluminum, copper or fiber, keep finished surfaces from being marked.
The vise is only as good as what it is mounted to. A bolted-down vise on a bench that wobbles will defeat the purpose. Choose a sturdy bench, mount the vise near a leg so forces go into the floor, and consider workbench height: many people find that the vise jaws sitting somewhere near elbow height is comfortable for filing, though it varies from person to person. Precision vise work, such as holding a small part for fine filing, may call for a smaller secondary vise or a hand vise in addition to the main one.
A few clamps, such as C-clamps and locking pliers, complete the holding set. They secure work to the bench for drilling and hold parts together while you check fit.
Layout tools
Layout is the stage where you decide where every cut and hole will go. The classic kit is small.
- Steel rule. A rigid 6-inch and 12-inch rule cover most work.
- Scriber. Leaves a fine line in the surface. Keep the point sharp, and treat it as the sharp instrument it is.
- Layout fluid or marker. A thin coat on bare steel makes scribed lines stand out.
- Combination square. Helps with scribing lines at right angles and at forty-five degrees, and with checking square on finished parts. Checking square often catches errors before they become scrap.
- Dividers or a pair of calipers. Dividers scribe circles and arcs and step off equal distances. Calipers measure thickness and diameter, and a basic pair is more affordable than a precision micrometer. Treat measurements from low-cost tools as approximate, and decide how much accuracy a given part really needs.
Keep measuring tools in a drawer or case rather than loose in a toolbox. Protecting them from knocks and rust is part of workshop measuring accuracy.
Punches
Punches mark and move metal, and a small set earns its place on any bench.
- Center punch. A tapped dimple at the center of a hole location keeps a drill bit from wandering. Give it a firm tap with a hammer; a light dimple is enough for the drill, and a heavy one is rarely needed.
- Prick punch. Has a finer point, used to mark layout lines so they survive later handling.
- Pin punches. Straight-shanked punches used to drive out pins and rivets.
- Automatic center punch. A spring-loaded version that needs no hammer, convenient for thin sheet where hammer blows might bend the work.
Punch heads can mushroom with repeated hammer strikes. Chips can fly off a badly mushroomed head, so grind or file the edges back, and wear eye protection when you strike any punch.
Hammers
A ball-peen hammer is the usual choice for general metalwork: the flat face drives punches and the rounded peen shapes and stretches metal. A lighter hammer gives better control for small work. A soft-faced mallet is useful for adjusting parts without marring them. Match the hammer weight to the job rather than reaching for the heaviest one.
Files and the care they need
A handful of files does most of the shaping at a bench.
- Mill bastard or similar flat files for flattening edges and removing material quickly.
- Half-round and round files for curves and holes.
- Needle files for small, fine detail.
- A file card, which is a brush with short stiff bristles, to clear metal from the teeth.
Files cut on the push stroke. Lifting them slightly on the return stroke preserves the teeth. Pressing too hard or filing a hardened surface can dull them. A file card and an occasional rub with chalk reduce clogging, and a loaded file can scratch the work. Keep files from rubbing against each other in a drawer, since contact dulls the teeth. Wrap them in cloth or give each a slot. The same habit applies to rust prevention across the bench: a light coat of oil on bare steel tools and a dry storage space go a long way.
Small extras that earn their keep
- A hacksaw for cutting stock to rough length before filing.
- A deburring tool to clean the edges of cut tubes and drilled holes.
- A bench grinder, once you are comfortable with it, for sharpening drill bits, punches and chisels. It needs a proper guard, eye protection, and correct wheel spacing; follow the manual.
- A magnet or small parts trays to keep chips and fasteners from vanishing.
Keeping it all in order
A bench kit works best when every tool has a home. Store the layout tools together, punches in a rack or roll, and files in a tray. A cluttered bench slows work and increases the risk of knocking a sharp tool into your hand. Sweep metal chips with a brush rather than your bare palm, and wear safety glasses for striking, filing and any work that throws chips. This article is general information, not professional advice, and your tool manuals are the final word on how to use each tool safely.