Glass Drilling can be reviewed for Gauge Glass, but the accepted route depends on the exact grade or functional material definition, supplied form, thickness, feature geometry, edge condition, surface requirement and inspection method. The assigned process record notes: Glass Drilling: source-backed external reference facts retained from V3.2.1; only numeric facts are counted as numeric capability data. The assigned material or application record adds: Material- and grade-dependent; qualify cutting, grinding, drilling, lapping and polishing against fracture and surface requirements.
Glass Drilling for Gauge Glass
Glass Drilling can be reviewed for Gauge Glass, but the accepted route depends on the exact grade or functional material definition, supplied form, thickness, feature geometry, edge condition, surface requirement and inspection method. The assigned process record notes: Glass Drilling: source-backed external reference facts retained from V3.2.1; only numeric facts are counted as numeric capability data. The assigned material or application record adds: Material- and grade-dependent; qualify cutting, grinding, drilling, lapping and polishing against fracture and surface requirements.
Gauge Glass
Material- and grade-dependent; qualify cutting, grinding, drilling, lapping and polishing against fracture and surface requirements
Glass Drilling
Glass Drilling: source-backed external reference facts retained from V3.2.1; only numeric facts are counted as numeric capability data.
Drawing-defined feasibility
Final capability is reviewed against grade, supplied form, thickness, geometry, edge distance, finish, tolerance, quantity and inspection method.
How the Process and Glass Type Interact
The table separates verified process or material records from project-specific items that still require drawing review.
| Review area | Assigned technical basis |
|---|---|
| Process purpose | Glass Drilling: source-backed external reference facts retained from V3.2.1; only numeric facts are counted as numeric capability data. |
| Material or functional basis | Material- and grade-dependent; qualify cutting, grinding, drilling, lapping and polishing against fracture and surface requirements |
| Input form | Flat sheet, blank, tube, rod or preform as applicable to the named process |
| High-risk condition | Thin, brittle, strengthened, crystalline or coated parts require grade- and geometry-specific qualification |
| Inspection basis | Dimensional and visual inspection; add microscopy, profilometry or interferometry when the drawing requires it |
Gauge Glass Properties Relevant to Glass Drilling
Published values retain their grade and source conditions. They are not automatic finished-part guarantees.
| Material property | Published reference |
|---|---|
| Material category | Gauge/sight glass |
| Chemical resistance | Acid class 1 reported by the reviewed DIN 7081 manufacturer datasheet |
| Available forms | Oblong transparent or reflex gauge-glass plates |
Glass Drilling References and Design Limits
Numeric values are displayed only when an exact or accepted process-family record has verified public evidence. Proxy-family pages suppress numeric ranges and remain drawing-review pages.
| Process parameter | Reference value | Applicable condition |
|---|---|---|
| Minimum Thickness | 0.76 mm | CNC drilling program |
| Maximum Thickness | >25.4 mm | CNC drilling program |
| Minimum Part Size | 50.8 x 50.8 mm | CNC program; smaller parts need dedicated holding |
| Maximum Part Size | 2286 x 1524 mm | CNC program envelope |
| Minimum Hole Diameter | 0.5 mm | SCHOTT special drilling process range 0.5-40 mm |
| Maximum Hole Diameter | 300 mm | SCHOTT standard flat-glass hole range 3.5-300 mm |
| Minimum Edge Distance | greater of 2 x glass thickness or 1.5 x hole diameter, capped at 50 mm for holes up to 60 mm | SCHOTT processed-flat-glass design table |
| Dimensional Tolerance | ±0.508 mm general; up to ±0.127 mm | JNS/Abrisa CNC drilling program |
| Design item | What must be reviewed |
|---|---|
| Thickness and part envelope | 0.76 mm >25.4 mm 50.8 x 50.8 mm 2286 x 1524 mm |
| Feature size | 0.5 mm |
| Edge distance and wall section | greater of 2 x glass thickness or 1.5 x hole diameter, capped at 50 mm for holes up to 60 mm |
| Tooling and process condition | Cat-i states that its glass drilling techniques include diamond tooling and high-pressure abrasive methods.; Vitrum states that its CNC fabrication machine drills, mills, polishes and cuts holes and notches. |
| Tolerance and finish | ±0.508 mm general; up to ±0.127 mm |
| Drawing review | For Glass Drilling on Gauge Glass, identify datums, critical features, edge and surface zones, coating sides, inspection method and quantity. |
Inspection Focus for Gauge Glass glass drilling Feasibility Review
Acceptance should connect the drawing characteristic to a measurement method, fixture condition and stated limit.
| Review item | Project-specific focus |
|---|---|
| Process defects | Chipping, cracking, subsurface damage, dimensional error, contamination or surface defects as applicable |
| Process limitation | Public supplier values are not universal; blank numeric fields indicate that no transferable public value was verified |
| Design condition | Define material grade, thickness, geometry, edge distances, datum scheme, surface/edge acceptance and inspection method |
| Product design risk | Wrong reflex/transparent type, steam/alkali attack, gasket overload, end damage and pressure misapplication |
| Product inspection | Dimension/profile inspection, edge and prism visual check, material marking, assembly leakage and pressure validation |
| Application failure modes | Incorrect gauge type, caustic attack, end damage, uneven gasket compression and misuse of a pressure table. |
| Application inspection | Dimensional/profile inspection, edge and prism visual examination, marking check and assembly leak/pressure test. |
Information Needed Before Quotation
Use the drawing to define the exact material, process feature, tolerance, edge and surface acceptance criteria.
RFQ inputs
- Gauge type, standard/size code, length, width/OD, thickness/wall, pressure, temperature, medium, end finish, gasket and mica protection
- Gauge type, standard/size code, dimensions, pressure, temperature, medium, end finish, gasket and mica protection.
- Define material grade, thickness, geometry, edge distances, datum scheme, surface/edge acceptance and inspection method
- Provide a drawing revision, material or grade, quantity, dimensions, tolerances, critical surfaces and the required inspection record.
Selected Material and Process References
References support the assigned records but do not replace an approved part drawing, first-article result or production specification.
- DIN 7081:1999-05 Pressure resistant sight glasses made of borosilicate glass for use in oblong armatures DIN Media
- Cat-i Glass Drilling Beveling and Sawing Cat-i Glass
- Precision Drilling and Milling Vitrum Glass Group
- Abrisa Glass Machining Capabilities Abrisa Technologies
- JNS CNC Glass Machining, Drilling, Slotting and Grooving JNS Glass
Request a Project-Specific Glass Review
Send the drawing, material, dimensions, quantity, tolerances, surfaces and inspection requirements for feasibility review.
- Process: Glass Drilling
- Material: Gauge Glass
- Drawing or part sketch
- glass type/grade
- Thickness / part size
- Quantity
STEP/STP, DXF, DWG, PDF, IGS/IGES or ZIP.
Confidential drawing review. NDA support available on request.
Frequently Asked Questions
These answers use the material, process, product and application data assigned to this page.
Is Glass Drilling suitable for Gauge Glass on Gauge Glass glass drilling Feasibility Review?
Glass Drilling can be reviewed for Gauge Glass, but the accepted route depends on the exact grade or functional material definition, supplied form, thickness, feature geometry, edge condition, surface requirement and inspection method. The assigned process record notes: Glass Drilling: source-backed external reference facts retained from V3.2.1; only numeric facts are counted as numeric capability data. The assigned material or application record adds: Material- and grade-dependent; qualify cutting, grinding, drilling, lapping and polishing against fracture and surface requirements.
Which material details must be confirmed before Glass Drilling for Gauge Glass?
For Gauge Glass glass drilling Feasibility Review, material- and grade-dependent; qualify cutting, grinding, drilling, lapping and polishing against fracture and surface requirements.
Which geometry details control Glass Drilling for Gauge Glass?
For Gauge Glass glass drilling Feasibility Review, define material grade, thickness, geometry, edge distances, datum scheme, surface/edge acceptance and inspection method.
Can published process values be used as guaranteed tolerances for Gauge Glass glass drilling Feasibility Review?
For Gauge Glass glass drilling Feasibility Review, no. Published values remain reference conditions. The accepted tolerance depends on the exact material grade, thickness, geometry, datum scheme, edge and surface requirement, quantity and inspection method.
Which defects and inspection checks matter after Glass Drilling on Gauge Glass?
For Gauge Glass glass drilling Feasibility Review, chipping, cracking, subsurface damage, dimensional error, contamination or surface defects as applicable.
What should an RFQ include for Gauge Glass glass drilling Feasibility Review?
For Gauge Glass glass drilling Feasibility Review, gauge type, standard/size code, length, width/OD, thickness/wall, pressure, temperature, medium, end finish, gasket and mica protection Gauge type, standard/size code, dimensions, pressure, temperature, medium, end finish, gasket and mica protection.