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What a drawing needs to carry for a firm quote
Material grade, quantity, critical features, finish and any standard reference, plus a sample where one exists.
Most enquiries arrive as a drawing and a quantity, which is a good start but rarely complete. The gaps that cause revision are usually material grade rather than family, and which features are functionally critical rather than merely dimensioned.
Where a part is currently bought elsewhere, a physical sample is worth more than any amount of additional drawing detail. It removes the guesswork about tolerance interpretation and finish, and it lets us check the fit rather than infer it.
With those in hand, the quotation states the price, the process and the lead time, and a free sample is made to the drawing before any volume run starts. For a non-standard part that sample is the only real verification available.
Specifications
| Drawing should carry | Material grade, critical features, finish, standard reference |
|---|---|
| Send if available | A physical sample of the current part |
| Before volume | A free sample made to the drawing |
Related Products
Choosing between turning, cold forging and stamping
Geometry and quantity decide the process, and quoting a part on the wrong one can double its price.
DIN and ISO standard parts, and when a special is cheaper
A standard part is cheaper until the standard does not fit, at which point a special is cheaper than an assembly designed around a compromise.
Material and surface treatment selection
A grade that machines more easily may corrode sooner, and that trade-off belongs to the buyer rather than the supplier.
Have a drawing ready
Send the drawing with the material, the quantity and the finish you need. You will get a price, a process and a lead time, and a free sample before volume production.