Glass With Countersunk Holes: 82/90 degree, depth +/-0.05 mm. Single-piece prototypes to production volumes, quoted from your drawing.
glass with countersunk holes – manufactured to drawing with documented tolerances, from single prototypes to production.
Specification envelope
| Feature | Countersunk Holes |
|---|---|
| Capability | 82/90 degree, depth +/-0.05 mm |
| RFQ inputs | PDF/DXF/STEP drawing, quantity brackets, surface and edge spec |
Manufacturing capability
These features are produced by drilling or cnc machining. Capability: 82/90 degree, depth +/-0.05 mm. Design rule worth copying onto the drawing: countersink diameter within 2.5x hole diameter.
DFM notes from the shop floor
Before sending the RFQ, check these against your drawing:
- Feature rule: countersink diameter within 2.5x hole diameter.
- Over-specification is the quiet budget killer: a 20/10 scratch-dig face costs roughly three times an 80/50 face, so grade each surface individually.
The full rules live in our tolerance design guide and holes and edges design guide.
Where these parts end up
The recurring buyers of glass with countersunk holes: semiconductor equipment (view ports, wafer carriers, plasma rings, chamber windows); microfluidic devices (chips, manifolds, via plates, bonded stacks); optical sensors (sensor windows, filter caps, lens covers).
Dimensions still moving? Configure this part live in the 3D + 2D builder below, or open the full custom glass machining 3D + 2D builder to start from a blank canvas.
For adjacent specifications, see custom FTO glass, etched LED/OLED covers, optical glass options.
Common questions
How fast can prototypes ship?
Machined prototypes ship in 5 – 10 working days. Coated or bonded parts add 1 – 2 weeks depending on queue slots.
What files do you need for a quote?
A dimensioned PDF plus DXF or STEP geometry. If only a sketch exists, our drawing review service formalizes it before quoting.
Do parts ship with inspection data?
Dimensional reports, surface certificates and material certs per melt are available; specify the level on the RFQ.
What is the design rule for countersunk holes?
Countersink diameter within 2.5x hole diameter.
Specifications on this page were last reviewed by our engineering team in August 2026.