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| Decision field | Open accessKnitting Needle to Crochet Hook Size ChartGlobalRemove | Open accessPattern Grading & Size-Run Validation RecordGlobalRemove | Quote-basedOptitex 2D/3D Pattern DesignGlobalRemove | Open accessTech Pack Definition, Contents & LimitsGlobalRemove |
|---|---|---|---|---|
| Decision fit | ||||
| Primary job | Learn techniques | Find patterns & fit | Find patterns & fit | Source production |
| Also useful for | No additional job recorded | No additional job recorded | No additional job recorded | No additional job recorded |
| Area | Yarn | Patterns & fit | Patterns & fit | Production |
| Best for | Finding the current CYC hook and needle aliases that share one known nominal metric diameter before confirming project gauge | Auditing inherited grade rules or controlling a new multi-size pattern release from approved targets through sample evidence | Integrated pattern, marker, and 3D production workflows | Understanding what a tech pack must control before using a template or releasing work |
| Know before using | A shared nominal diameter does not make a knitting needle and crochet hook interchangeable or predict equal gauge or fabric. The reference is not a physical measurement, manufacturer inspection, UK or Canadian conversion, steel-hook chart, tool recommendation, yarn assignment, or project approval. | The record does not create a production grade, supply universal increments or breakpoints, validate a CAD file or fit population, reproduce licensed standards, or replace qualified anthropometric, pattern, technical-design, fit, quality, accessibility, safety, statistical, and user-research review. | Pricing is not public, modules and system requirements must be confirmed, and macOS is not supported. Vendor accuracy and fit language does not prove results for an actual product. Pilot native and exchanged files with the receiving supplier, calibrated materials, approved blocks and grade rules, marker and output devices, tech-pack fields, training, version control, and risk-appropriate physical fit and production checks. | An orientation rather than a completed product record; it does not supply a universal format, licensed standard content, measurements, tolerances, construction settings, labels, approvals, compliance conclusion, or product-release authority. |
| Practical access | ||||
| For | Makers | Apparel brands | Apparel brands | Apparel brands |
| Location or jurisdiction | Global | Global | Global | Global |
| Access | Open access | Open access | Quote-based | Open access |
| Format | Stitch Authority | Stitch Authority | Software | Stitch Authority |
| Source type | Stitch Authority | Stitch Authority | First-party platform | Stitch Authority |
| Source and review | ||||
| What the source establishes | Rechecked July 28, 2026. The lookup reproduces the current public Craft Yarn Council metric and U.S. alias rows, aligns hooks and needles only when their nominal millimetre value matches, and leaves missing rows or aliases unfilled. | The guide cites current ISO body-table, size-designation, and garment-measurement boundaries plus two peer-reviewed studies that tested the relationship between conventional grade rules, anthropometric evidence, and garment fit; it requires product-specific target deltas and validation instead of publishing universal increments. | Optitex's current page describes 2D pattern creation, grading, verification, Tech Pack Essentials, marker creation and nesting, cut and plot output, 3D virtual samples, fabric simulation, colour and print placement, tension maps, and avatar editing. Its support page lists native and standard CAD interchange routes and states that Optitex does not support macOS. | The guide cites published ISO sources for documented-information, garment-measurement, stitch, and seam boundaries plus current U.S. FTC textile and care-labeling guidance; it discloses that ISO 10013:2021's 2026 systematic review is at close-of-review stage and separates every cited authority from product-specific technical and market decisions. |
| Linked page reviewed | Jul 28, 2026 | Jul 27, 2026 | Jul 21, 2026 | Jul 27, 2026 |
| Next review due | Jul 28, 2027 | Jul 27, 2027 | Jan 17, 2027 | Jul 27, 2027 |
| Inspect | ||||
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