Kernlochbohrer-Tabelle — Kostenloses Online-Tool
Vorbohrung für jedes Gewindemaß
Finde den richtigen Bohrer für jedes Gewinde. Metrisch + Zoll. 75% und 50% Gewindeeingriff. Schnelle Tabelle ohne Anmeldung.
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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
Pick tap size
Select from standard UNC/UNF/metric.
- 2
Pick thread engagement %
75% standard; 50% for hard materials.
- 3
See drill size
Exact + closest standard bit.
Frequently Asked Questions
Why 75% thread engagement?
When to use 50%?
Wichtigste Punkte
- Tap Drill Size Chart is a free, browser-based calculator tool — pilot hole size for any tap thread.
- Nein 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
- Open the tool: Launch Tap Drill Size Chart on Toololis — no account or download needed.
- Enter your data: Paste text, enter values, or select a file directly in your browser.
- Get instant results: Everything is processed locally — results appear immediately.
- Copy or download: Save your output or share it. Bookmark for quick access next time.
Tap Drill Size Chart — Quick Facts
- Preis
- Kostenlos — keine Limits, kein Wasserzeichen, keine Paywall
- Privatsphäre
- 100% browser-basiert — keine Daten verlassen dein Gerät
- Plattform
- Jeder moderne Browser — Desktop, Tablet, Mobil
- Kategorie
- Rechner Tools on Toololis
- Offline
- Works offline after first visit (Progressive Web App)
| Merkmal | Details |
|---|---|
| Tool | Tap Drill Size Chart |
| Kategorie | Rechner |
| Anmeldung nötig | Nein |
| Datei-Upload | Keine — wird im Browser verarbeitet |
| Mobile-Unterstützung | Voll responsive |
| Kosten | Für immer kostenlos |
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.