RUKO HGB-sarja DIN 352 HSS-Co 60° M4 x 0.70 käsikierretappisarja

Precision hand tap set for cutting M4 x 0.70 metric threads in steel, cast iron, and non-ferrous metals, made from cobalt-alloyed high-speed steel for enhanced wear resistance.

Overview

The RUKO HGB Set DIN 352 includes three taps: taper, second, and bottoming, each with a 60° thread flank angle and right-hand cutting direction. The taps are manufactured to DIN 352 standards and offer ISO 2 (6H) tolerance class, suitable for through and blind holes.

What stands out

• HSS-Co material withstands high cutting temperatures and maintains hardness.
• Set of three covers the complete threading process from start to finish.
• Bright finish reduces friction and improves chip flow.
• Square drive shank ensures secure grip in tap wrenches.

Technical details

• Thread size: M4 x 0.70 mm
• Overall length: 45 mm
• Thread length: 18 mm
• Recommended core hole diameter: 3.3 mm
• Suitable for materials up to 900 N/mm² tensile strength

Our verdict

A reliable tap set for workshops needing consistent thread quality in common engineering materials.