Tap and Drill Set Exact 05112 — Exact 7-piece metric HSS DIN 371 Form B, right-hand cuts

Exact 05112 is a 7-piece tap and drill set designed for creating standard metric threads. Manufactured in high-speed steel (HSS), the set follows DIN 371 Form B with right-hand cutting geometry and combines appropriately sized drills and hand taps for manual workshop and maintenance use. The components are intended for use in common metals such as steel and cast iron, providing a compact solution for thread-making tasks where a coordinated drill and tap selection is required.

Advantages

The Exact 7-piece set offers matched drill and tap sizes that simplify thread preparation and tapping operations. Constructed from HSS, the tools deliver a balance of hardness and toughness for manual applications and resist wear under typical workshop conditions. Compliance with DIN 371 Form B ensures standardized thread form and chamfer geometry for reliable thread starts using right-hand cutting taps. The compact kit reduces the need to select individual tools and helps maintain consistent thread quality across repeated operations.

Suitable for

• Manual tapping of metric threads in steel components
• Repair and maintenance work on machinery and assemblies
• Small-scale fabrication and prototyping in metal workshops
• Drilling pilot holes and tapping in cast iron and other common metals

Key specifications

• Set composition: 7 pieces including drills and hand taps
• Material: high-speed steel (HSS)
• Thread standard: metric threads to DIN 371 Form B
• Cut direction: right-hand cutting
• Application: manual tapping and drilling in common metals

How to use

Select the appropriate drill from the set for the desired metric thread size and drill the pilot hole to the correct depth, using cutting fluid where applicable to reduce heat and extend tool life. Secure the workpiece and use the corresponding hand tap with a T-handle or tap wrench, applying steady pressure and turning clockwise for right-hand threads. Use intermittent reverse turns to clear chips, and back the tap out completely after reaching the required thread depth. Clean the tapped hole and inspect thread engagement before assembly.

Usage recommendations

Use suitable cutting fluid when working with steel and cast iron to improve chip evacuation and reduce tool wear. For hardened materials or high-volume production, consider machine taps or coated tool variants better suited to those conditions. Store the set dry and clean to prevent corrosion and preserve dimensional accuracy.