Tap Drill GEKO HSS M3 x 0.5 mm HEX, set sizes 50/250

GEKO HSS tap M3 x 0.5 mm with HEX shank is a high-speed steel internal thread tap designed to cut and form metric M3 threads with a 0.5 mm pitch. Manufactured for use in both hand and machine tapping applications, this tap provides a compact HEX shank for secure fastening in chucks or holders. The tool is intended for metalworking and maintenance tasks involving thin materials and assemblies where a standard M3 thread is required.

Advantages

The HSS material offers a balance of hardness and toughness suitable for general-purpose threading in steel, non-ferrous metals, and some softer alloys. The HEX shank allows quick and reliable clamping in compatible holders and reduces slippage during manual or machine operation. The tap’s geometry is optimized for cutting efficiency and chip evacuation in typical maintenance and light fabrication environments.

Suitable for

• Cutting and forming M3 x 0.5 mm internal threads in thin metal sheets and small assemblies
• Maintenance and repair work on machinery, electronics enclosures, and fittings
• Workshop and hobby applications requiring a compact HEX-shank tap for quick tool changes

Key specifications

• Thread size and pitch: M3 x 0.5 mm
• Material: high-speed steel (HSS)
• Shank type: HEX shank for secure clamping
• Application: internal metric threads (through or blind holes depending on procedure)
• Intended use: hand tapping or machine tapping with appropriate holder

How to use

Select an appropriate drill size for the M3 x 0.5 mm tap hole, secure the workpiece, and align the tap perpendicular to the hole. For hand use, fit the HEX shank into a suitable holder or wrench; for machine use, clamp the HEX shank in a compatible chuck or adapter. Apply suitable cutting lubricant, advance the tap with steady pressure, and periodically reverse the tap to break and clear chips. Complete threading by running the tap through the hole until threads are fully formed, then back out carefully to avoid damaging the freshly cut threads.

Usage recommendations

Use cutting fluid when tapping ferrous materials to improve tool life and thread finish. For blind holes, avoid excessive depth to prevent chip packing; clear chips frequently. Inspect the tap for wear or damage before use and replace if cutting performance deteriorates.