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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 — your data stays on your device.
  • 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
100% dans le navigateur — aucune donnée n’est envoyée à un serveur
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. All processing happens in your browser. Your files and data never leave your device. According to web.dev, client-side processing is the gold standard for privacy.

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.