A machine shop can always account for its machines - they are bolted to the floor. The money that walks around does so in drawers and tool carousels: micrometers, bore gauges, tool holders, collets, vises and fixtures that together rival the value of a machining centre, in pieces small enough to fit a coat pocket. This guide covers which of that tooling deserves a per-item record, how to run a tool crib without hiring a crib attendant, and how to keep gauge calibration tidy enough to survive a quality audit.
What you will learn
- Why shop tooling drifts
- What to track per item - and what is just stock
- Run the crib like a checkout counter
- Calibration and machine service records
- Getting started without stopping production
- Where AMPthilly fits
- FAQ
Why shop tooling drifts
- The valuable items are the small ones. A drawer of gauge blocks and carbide holders is worth more than the bench it sits in, and nothing about a tool’s size warns anyone that it matters.
- Tools follow jobs, not systems. A setup borrows the good vise from the next machine over, the vise stays there for a month, and “who has the six-inch vise” becomes a shop-wide question.
- Durables and consumables share drawers. Inserts and drills are consumed; holders, collets and gauges are not - but they live side by side, so they get managed the same way, which is usually not at all.
- Gauges leave the building. External calibration takes weeks, and a gauge at the cal lab looks exactly like a lost gauge unless someone wrote the trip down.
- Fixtures hibernate. A fixture built for a repeat job has no home between runs. When the repeat order lands eighteen months later, rebuilding it quietly eats the margin.
The pattern is the same in every shop: tooling changes hands more often than anyone records it, so the record dies. The fix is making the handover do the recording.
What to track per item - and what is just stock
One rule keeps the register maintainable: if it comes back to the drawer after the job, it is an asset; if it gets used up, it is stock.
| Asset class | Track as | What matters on the record |
|---|---|---|
| Gauges and metrology - micrometers, calipers, bore gauges, height gauges | Per item | Calibration due date, latest certificate, current holder |
| Tool holders, collets, chucks, vises, fixtures | Per item or per kit | Owning machine or shelf location, condition |
| Cutting tools - inserts, drills, taps, end mills | Stock with reorder points | Quantity on hand, never a serial number |
| Shop equipment - saws, grinders, compressors, hoists | Per item | Service history, inspection dates |
| Portable and supporting kit | Per item | Current holder |
That last row covers more than most shops expect: cordless tools and their tool batteries, the extension cable reels feeding equipment mid-floor, lifting and safety equipment with inspection dates, and issued PPE.
On the stock side, the job is never running out mid-batch. A stockout on one insert grade can idle a machine while the order ships, so set reorder points on the fast movers and count them on a rolling cycle count rather than waiting for an annual shutdown stock-take.
Run the crib like a checkout counter
A tool crib does not need an attendant - it needs one habit, applied every time:
- Everything in the crib has an ID and a home. A labelled drawer or a shadow board position, so an empty slot is information rather than a mystery.
- Taking a tool means checking it out - to yourself, or to the machine the job runs on. Ten seconds at the drawer replaces an hour of asking around later.
- Shared high-value items work as a pool. The one good torque wrench and the shop’s two bore gauge sets are checked out per job and returned after, with the record showing who has them now.
- Returns capture condition. A chipped vise jaw noted at return is a repair; discovered at the next setup, it is scrap on someone else’s part.
- A monthly glance at what has not moved catches shrinkage while the trail is still warm.
Tip: When a gauge goes out for external calibration, check it out to the cal lab like any other borrower. The overdue list then chases late returns for you - a gauge at the lab should never look identical to a gauge that is simply gone.
Calibration and machine service records
Two kinds of dates earn their place on the register. Calibration due dates on metrology are the obvious ones - a measurement made with an out-of-cal gauge is a conversation nobody wants to have with a customer’s quality team, so the due date and the latest certificate belong on each gauge’s record where anyone can find them.
Machine service is the slower burn. Way lube, coolant system maintenance, belt and filter changes, and every repair with its invoice belong on the machine’s own history - because that history is what eventually answers whether the next spindle rebuild is an investment or good money after bad.
Getting started without stopping production
- Start with the crib and the gauges. The highest-value, highest-drift items first; the rest of the shop can follow a drawer at a time.
- Label as you list. Small durable labels on holders and equipment; for gauges that live in fitted cases, label the case.
- Draw the asset/stock line once. Inserts and drills get reorder points, not records. A register full of individually tracked drill bits is a register nobody maintains.
- Check everything out to where it is today. True from day one beats complete next quarter.
- Enforce one habit: nothing leaves the crib without a scan.
Where AMPthilly fits
AMPthilly runs this whole pattern from a phone browser. Each tool gets a register entry with custom fields - calibration due dates on gauges, condition notes on fixtures - plus printable QR labels you can batch-print for an entire drawer. Scanning a label with a phone camera opens the record in the browser, no app install, where a machinist can check the tool out, hand it over, or report damage with a photo through the service desk. Checkouts, returns and edits land in a permanent audit history, and CSV import brings an existing tooling list straight in. The free plan covers 3 users and 25 assets with no card required - enough to pilot the gauge cabinet before putting the whole crib on it (plans are on the pricing page).
FAQ
How do machine shops keep track of tooling and gauges? Durables get IDs and an owner - a person, machine or shelf - with checkouts recording every move; inserts and drills are stock with reorder points, counted on a rolling cycle.
Should cutting tools be tracked as assets or consumables? If it comes back after the job (holders, collets, fixtures), it is an asset. If it gets used up (inserts, drills, taps), track quantity with a reorder point instead.
How do you track gauge calibration in a small shop? Due date and latest certificate on each gauge’s record, gauges checked out to the cal lab when they leave, and a monthly filter on what is coming due.
Is a spreadsheet enough for tool crib management? For one bench, maybe. Once tooling moves between machines and people daily, the checkout itself has to update the record - nobody edits a sheet mid-setup.
How does QR labelling work on machine shop tooling? Small durable labels tied to each item’s record; a phone camera scan shows what it is, who has it, and its history. Label cases or storage slots where coolant and chips would destroy a label on the tool.
The takeaway
Shop tooling drifts because handovers outpace records. Separate assets from stock, give every durable item an ID and an owner, run the crib as a checkout counter, and put calibration and service dates on the record where they can nag. Tools like AMPthilly wrap that pattern - register, checkouts, QR labels, service history - in one place, free to start with 3 users and 25 assets; but the rule comes first: if it comes back to the drawer, it has a record.