Glossary
Job shop quoting glossary
119 terms an estimator, shop owner or new buyer meets on RFQs, drawings and quotes, each in a sentence or two. Where a guide covers the term in depth, the term links to it. Worked numbers for lot charges, NRE and FOB are in quote terms with numbers.
RFQs and quotes
- RFQ (request for quotation)
- A buyer's request for a price, usually a drawing, a 3D model, quantities and a due date. What's missing from it is usually what makes the quote risky.
- Quote
- The shop's priced offer: a unit price at each quantity, lead time, terms and how long the price holds. Once the buyer's PO accepts it, it's the deal.
- Estimate
- The shop's own cost build-up behind a quote: material, setup, run time, outside services and markup. Many shops say estimate and quote interchangeably; the buyer only sees the quote.
- ROM (rough order of magnitude)
- A quick, non-binding price range from incomplete information, such as "about $800 to $1,200 for 10". Say on it that it isn't a quote.
- Bid package (RFQ package)
- A large RFQ with many part numbers, drawings and requirements at once. Triage it first: quote the parts you want, no-quote the rest.
- No-quote (no-bid)
- Declining an RFQ, ideally fast and with a reason, so the buyer keeps sending you work you do want.
- Quote turnaround
- Time from receiving an RFQ to sending the quote. Buyers often award to whoever answers first with a credible price.
- Win rate (hit rate)
- Quotes won divided by quotes sent, by count or by dollars. Very high can mean you're cheap; very low can mean you're quoting the wrong work.
- Quote validity
- How long a quoted price holds, often 30 days. A material clause lets you requote if metal prices move before the PO arrives.
- Target price
- The price a buyer says they want to pay. It tells you their budget or a competitor's number, not what the part costs you to make.
- Should-cost
- A buyer's own model of what a part ought to cost, used to push a supplier's price down. Answer it with your routing and minutes, not a discount.
- Go-away price
- A deliberately high quote on work you don't want, priced so that winning it would be worth the trouble.
Price and order terms
- Price break (quantity break)
- The unit price at a stated quantity, such as 1, 10 and 100. It falls with quantity because setup and lot charges spread over more parts.
- MOQ (minimum order quantity)
- The smallest quantity a shop or its supplier will take. A minimum order charge does the same job in dollars: a $20 part is still billed at the $65 minimum, for example.
- Lot charge
- A fee charged once per batch, whatever its size, common from finishers and heat treaters. A $125 lot charge is $5 a part on 25 and $1.25 on 100.
- NRE (non-recurring engineering)
- One-time cost to get a job ready, such as programming, fixtures or a special gauge. It's charged once, not on repeat orders.
- Tooling charge
- A separate line for special cutters, form tools, soft jaws or fixtures bought or made for one job, often owned by the customer once paid.
- Expedite fee
- A charge for delivering faster than the normal lead time, covering overtime and the jobs pushed back to make room.
- Lead time
- Working days from order (or approved first article) to shipment. Quote it from your real backlog, not your best week.
- PO (purchase order)
- The buyer's written order. Accepting it, together with the quote and terms it refers to, forms the contract.
- Blanket order (blanket PO)
- One PO for a total quantity, delivered in scheduled releases. Price it on the quantity actually committed, not the forecast.
- Change order
- A written change to an accepted order, such as a new revision, quantity or date, with its price and schedule impact.
- Cancellation charge
- What the buyer owes if they cancel after work has started: material bought, setups done and parts already made.
- Overrun and underrun
- Shipping slightly more or fewer parts than ordered, such as ±5%, when the PO allows it. It covers setup scrap and lets the shop ship a full run.
- Net 30
- Payment due 30 days after the invoice. Net 60 and net 90 mean the shop finances the customer's parts for two or three months.
- 2/10 net 30
- A 2% discount if the invoice is paid within 10 days, otherwise the full amount in 30. A $1,000 invoice paid on day 10 is $980.
- FOB (free on board)
- Where ownership and freight risk pass to the buyer. FOB origin: when the carrier picks up at the shop. FOB destination: on delivery.
- Time and materials (T&M)
- Billing actual hours at an agreed rate plus material, instead of a fixed price. Common for repair work and undefined prototypes.
- Customer-supplied material (consigned material)
- Stock the buyer provides. You save the material cost but still own the scrap risk, so the quote should say who pays for spoiled stock.
- Material surcharge
- An added charge tied to a metal index or the shop's purchase price, so a quote doesn't lose money when material moves.
Cost and rates
- Shop rate (hourly rate)
- What a shop charges per machine or labor hour, covering wages, machines, floor space, overhead and profit.
- Machine rate
- An hourly rate per work center instead of one shop rate, so a 5-axis hour costs more than a manual mill hour.
- Burden rate (burdened labor rate)
- A worker's wage plus payroll taxes, benefits and paid time off, per hour actually worked. Example: a $28 wage with 30% taxes and benefits, paid for 2,080 hours and working 1,800, burdens to about $42.
- Overhead rate
- Indirect costs (rent, utilities, office staff, insurance, software) spread over billable hours and added to each hour you quote.
- Markup
- The percentage added on top of cost. A 30% markup on $100 of cost gives a $130 price.
- Margin
- Profit as a share of the price. The $130 price above has a 23.1% margin, so a 30% markup is not a 30% margin.
- Material markup
- The percentage added to purchased material to cover buying, handling, cutting and scrap.
- Cost-plus pricing
- Price equals estimated cost plus a fixed markup. Predictable, but it leaves money on hard parts only you can make.
- Utilization
- The share of available hours a machine is actually cutting or billed. A rate built on 85% utilization loses money at 60%.
- Machine payback
- How long a machine takes to earn back its price from the hours it bills, after its operating costs.
- Job costing
- Comparing what a job actually took (hours, material, scrap) with what was estimated, to fix the next quote.
- Outside processing (OSP)
- Work sent to another company, such as anodizing, plating, heat treat or grinding. Quote it with the vendor's lot charge, freight and extra days.
- Scrap allowance
- Extra parts or material quoted to cover setup pieces and rejects, so the order ships complete.
- Tool cost
- Cutters, inserts and holders worn out by a job. Usually in the shop rate; quoted separately for hard materials or special tools.
Routing and time
- Routing
- The ordered list of operations a part goes through, each on a work center with its setup and run time. The routing is the backbone of the estimate.
- Operation
- One step in a routing, such as saw, first-side mill, second-side mill, deburr or inspect.
- Work center
- A machine or group of like machines that operations are scheduled and costed on, each with its own hourly rate.
- Setup time
- Time to get a machine ready for a job: workholding, tools, offsets, program proving and first-piece check. Paid once per lot.
- Setup charge
- Setup cost shown as its own line instead of spread into the unit price, which makes small lots easier to explain.
- Cycle time
- Time for one part through one operation, from cycle start to cycle start, including tool changes and rapids.
- Run time
- Cycle time plus load, unload and in-process checks, per part. Run time times quantity plus setup gives the hours on a job.
- Material removal rate (MRR)
- Cubic inches (or cm³) of metal removed per minute. Volume to remove divided by MRR is a fast first estimate of roughing time.
- Programming time
- CAM time to write and post the toolpaths. Often a one-time charge on a new part, or folded into setup.
- Prove-out (first-piece run)
- Running the first part slowly, measuring it and adjusting offsets before the lot runs. Part of setup in most estimates.
- Learning curve
- Run time falls as a lot repeats and operators settle in, so long runs often go faster than the first ten parts suggest.
- Lights-out machining
- Running unattended, usually overnight on a pallet or bar-fed machine. Cheaper hours, but only for proven, stable jobs.
- Deburring
- Removing sharp edges and burrs after machining, by hand or in a tumbler. Often underquoted on parts with many edges and cross holes.
- Stock size (blank)
- The raw piece a part is cut from, with allowance for facing and holding. Material cost comes from the stock, not the finished part.
- Parts per bar
- How many parts one bar yields after cutoff width, facing and the unusable remnant. A turned-part price depends on it.
- Remnant (drop)
- The end of a bar or sheet left after the last good part. Quote it as cost unless you really reuse it.
Machines and processes
- 3-axis milling
- The cutter moves in X, Y and Z; the part is flipped by hand for each new side, which adds setups.
- 5-axis milling
- Two rotary axes tip and turn the part, so most sides are cut in one or two setups. A higher hourly rate, often fewer setups.
- Live tooling (mill-turn)
- Driven tools on a lathe that drill and mill while the part is still in the chuck, replacing a secondary milling op.
- Swiss-type lathe (sliding headstock)
- A bar-fed lathe where the bar slides through a guide bushing, made for small, long, precise turned parts in high quantities.
- Screw machine
- A bar-fed automatic lathe for high-volume small turned parts. The name dates from making screws; today it covers cam and CNC machines.
- Davenport (multi-spindle cam screw machine)
- A five-spindle, cam-driven automatic screw machine: every spindle cuts at once and a part drops at each index, so cycles run in seconds. Setup (cams, form tools) takes hours, so it pays on lots in the thousands.
- Wire EDM
- Cutting conductive metal with a charged wire, for sharp internal corners, hardened steel and fine detail. Priced by cut length and part thickness.
- Weldment
- An assembly of cut parts welded together, quoted as material by weight, cutting, fit-up and weld length.
Sheet metal
- Flat pattern
- The unfolded shape of a sheet metal part, usually a DXF. Cut length, pierces and blank size come from it.
- Nesting
- Arranging flat patterns on a sheet to use as much of it as possible. Material cost per part comes from parts per sheet, not part area.
- K-factor
- Where the neutral axis sits through the thickness during a bend, as a fraction of thickness (often 0.3 to 0.5). It sets the flat length of a bent part.
- Bend allowance (bend deduction)
- The length added or subtracted at each bend to get from the formed dimensions to the flat pattern. Both come from the K-factor, bend radius and angle.
- Press brake
- The machine that bends sheet between a punch and die. Quoted per bend hit plus setup per tool change.
- Pierce
- Each point where the laser, plasma or waterjet starts a cut through the sheet. Every hole adds a pierce, and pierces add time.
- Cut length
- The total length of every outline and hole a cutting machine traces. Cut length divided by feed rate, plus pierces, gives cutting time.
- Kerf
- The width of material the cut removes, a few thousandths on a laser and wider on plasma or waterjet. It matters for tight fits and nesting.
- Gauge (ga)
- A sheet thickness number where higher means thinner: 14 ga steel is about 0.075 in, 10 ga about 0.135 in.
- Hardware insertion (PEM)
- Pressing self-clinching nuts, studs or standoffs into sheet after cutting. Quoted per insert plus setup.
Finishes and treatments
- Anodizing
- An electrochemical oxide layer on aluminum. Type II is decorative and corrosion-resistant; Type III (hardcoat) is thicker and wear-resistant.
- Passivation
- An acid treatment that removes free iron from stainless steel to restore its corrosion resistance.
- Powder coating
- Dry paint sprayed on and baked; tough, and priced by surface area, color changes and masking.
- Heat treat
- Hardening, tempering or stress-relieving metal in a furnace. Usually outside processing, with a lot charge and added days.
- Surface finish (Ra)
- Average surface roughness in microinches or micrometers. 125 Ra is a normal machined finish; 32 Ra and below take extra passes or grinding.
- Masking
- Covering features (threads, bores, contact surfaces) so a finish doesn't reach them. Every masked feature adds labor.
Drawings, files and GD&T
- STEP file (.stp, .step)
- The neutral 3D CAD format most buyers send. Stock size, features and setups can be measured from it.
- IGES (.igs)
- An older neutral CAD format, often surfaces rather than solids; ask for STEP when a model won't measure.
- DXF
- A 2D CAD format, the usual way to send a flat pattern for laser, plasma or waterjet.
- Drawing (print)
- The 2D PDF with dimensions, tolerances, material, finish and notes. When the model and drawing disagree, the drawing usually governs.
- Title block
- The box on a drawing with part number, revision, material, finish and the general tolerances that apply to every dimension without its own.
- Revision (rev)
- The drawing's version letter or number. Quote and make to the revision on the PO, and check it before every run.
- Tolerance
- How far a dimension may vary. Tighter tolerances mean slower cuts, more inspection and sometimes grinding.
- GD&T (geometric dimensioning and tolerancing)
- Symbols that control form, orientation and location relative to datums (ASME Y14.5). Every callout in a feature control frame is something to hold and measure.
- Datum
- A reference feature (a face, axis or hole) that measurements and tolerances are taken from. Datums also tell you how to fixture the part.
- Feature control frame
- The box with a GD&T symbol, tolerance and datum references attached to a feature.
- True position
- How far a hole or feature may sit from its exact location, as a diameter zone. Tight position often means one setup or CMM inspection.
- Flatness
- How flat a surface must be, with no datum. Thin, large plates with tight flatness need stress relief or light passes.
- Profile
- Controls a surface or outline against its true shape, often for contoured parts. Profile of a surface usually means CMM inspection.
- Runout
- How much a turned surface wobbles when the part rotates on its datum axis. Tight total runout may call for grinding or one-setup turning.
- MMC (maximum material condition)
- A feature at the size with the most material, such as the smallest hole. Position at MMC gains bonus tolerance as the feature's actual size moves away from MMC.
- Thread callout
- A thread's size, pitch and class, such as 1/4-20 UNC-2B or M6x1-6H. The class and depth decide whether it's tapped, milled or rolled.
- Ballooned drawing
- A drawing with each characteristic numbered, used to tie every dimension to a line on an inspection report.
- DFM (design for manufacturability)
- Feedback that would make a part cheaper or more reliable to make, such as larger internal radii or looser non-critical tolerances.
Quality paperwork
- FAI (first article inspection)
- A full check of the first part against every characteristic on the print, with a report. Priced per part number and revision, not per piece.
- AS9102
- The aerospace standard form for first article inspection reports (forms 1, 2 and 3).
- CoC (certificate of conformance)
- A signed statement that the parts meet the PO's requirements. It's not a measurement of the parts.
- Material cert (MTR, mill test report)
- The mill's record of a heat's chemistry and mechanical properties, traced to the material you used.
- PPAP (production part approval process)
- The automotive package proving a process makes good parts consistently: FAI, capability studies, control plan and more. Quote it as its own line.
- Traveler
- The paper or digital sheet that follows a job through the shop with its routing, revision and sign-offs.
- CMM (coordinate measuring machine)
- A machine that probes a part to measure positions and profiles. CMM programming is setup; CMM run time is per part inspected.
- AS9100
- The aerospace quality management standard, ISO 9001 plus aerospace requirements. Many aerospace buyers require it.
- ISO 9001
- The general quality management standard. A certified system tells buyers your process is documented and audited.
Defense and export control
- ITAR (International Traffic in Arms Regulations)
- US rules (22 CFR 120–130) controlling defense articles and their technical data. Sharing ITAR technical data with a foreign person, even inside the US, needs an export authorization.
- ITAR registration
- Registration with the State Department's DDTC, required of US companies that manufacture or export defense articles, even if they never export.
- EAR (Export Administration Regulations)
- Commerce Department export rules for dual-use items. A drawing's ECCN, or EAR99, says how it's controlled.
- CUI (Controlled Unclassified Information)
- Sensitive government information that must be protected under NIST SP 800-171, often marked on defense drawings.
- DFARS
- The Defense Federal Acquisition Regulation Supplement. For shops: specialty-metals sourcing rules (252.225-7009) and the cybersecurity clause 252.204-7012.
- NIST SP 800-171
- The security requirements for systems that hold CUI; Revision 2's 110 requirements are the basis of CMMC Level 2.
- CMMC (Cybersecurity Maturity Model Certification)
- The DoD program that checks contractors' cybersecurity. Level 1 covers federal contract information (FCI); Level 2 covers CUI.
- DIBBS
- The Defense Logistics Agency's bid board, where small shops can find and bid on spare-parts solicitations.
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