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Tableau de Foret de Taraudage — Outil en ligne gratuit

Diamètre de pré-perçage pour tout taraud

Trouve le foret correct pour tout taraud. Métrique et impérial. Engagement de filet à 75 % et 50 %. Sans inscription.

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Tap drill size calculator

Find the correct drill bit for any tap. UNC, UNF, metric.

How to use this tool

  1. 1

    Pick tap size

    Select from standard UNC/UNF/metric.

  2. 2

    Pick thread engagement %

    75% standard; 50% for hard materials.

  3. 3

    See drill size

    Exact + closest standard bit.

Frequently Asked Questions

Why 75% thread engagement?
Standard engagement. Gives 95% of thread strength but 66% of the drilling effort vs 100%. Industry default for most jobs.
When to use 50%?
Hardened steels, stainless, or when breaking taps is a concern. Weaker threads but much easier tapping.

À retenir

  • Tap Drill Size Chart is a free, browser-based calculator tool — pilot hole size for any tap thread.
  • Non signup, no downloads, no file uploads. Outils run in your browser; the few that need an outside service say so on the page.
  • Works on desktop, tablet, and mobile. Install as a PWA for offline access.

How to Use Tap Drill Size Chart

  1. Open the tool: Launch Tap Drill Size Chart on Outilolis — no account or download needed.
  2. Enter your data: Paste text, enter values, or select a file directly in your browser.
  3. Get instant results: Everything is processed locally — results appear immediately.
  4. Copy or download: Save your output or share it. Bookmark for quick access next time.

Tap Drill Size Chart — Quick Facts

Prix
Gratuit — sans limites, sans filigrane, sans paywall
Confidentialité
Traité dans votre navigateur. Les outils qui ont besoin d’un service externe l’indiquent sur la page. Les visites sont comptabilisées (Google Analytics).
Plateforme
Tout navigateur moderne — desktop, tablette ou mobile
Catégorie
Calculateur Outils on Outilolis
Hors ligne
Works offline after first visit (Progressive Web App)
CaractéristiqueDétails
OutilTap Drill Size Chart
CatégorieCalculateur
Inscription requiseNon
Téléversement de fichierAucun — traité dans le navigateur
Compatible mobileEntièrement adaptatif
CoûtGratuit pour toujours

Why Use Tap Drill Size Chart?

You should try Tap Drill Size Chart for a quick, private way to pilot hole size for any tap thread. Processing happens in your browser and files are never uploaded; the few tools that need an outside service say so on the page.

On the other hand, dedicated APIs or desktop tools suit batch processing better. They also handle server-side automation. For everyday tasks, browser tools offer the best speed, privacy, and convenience.

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100% Confidentialité. Cet outil fonctionne entièrement dans votre navigateur. Vos données ne sont jamais envoyées à un serveur.