DIN 374B HSSE 800 Machine Tap M12x1 6H, Reinforced Shank, Ground Thread

Precision-ground from cobalt-alloyed HSSE 800 high-speed steel, this M12x1 fine-pitch machine tap delivers exceptional wear resistance and heat hardness for demanding production environments. The DIN 374B form B geometry with a 6H tolerance class ensures consistent, accurate threads in steel, stainless steel, cast iron, and non-ferrous metals.

Overview

Engineered for reliable machine tapping of through and blind holes, the tap features a reinforced shank for enhanced rigidity and reduced deflection under load. The straight flute design promotes efficient chip evacuation, while the uncoated ground thread provides a clean cutting edge for precise thread profiles. With an overall length of 110 mm, thread length of 28 mm, and shank diameter of 9 mm, it is compatible with standard tapping chucks and collets.

What stands out

• HSSE 800 cobalt steel: superior heat resistance and edge retention at high cutting speeds.
• DIN 374B form B chamfer (approx. 3.5–5 threads) balances easy starting with good thread guidance.
• 6H tolerance class ensures threads meet ISO metric fine standards for reliable assembly.
• Reinforced shank minimizes vibration and improves concentricity in machine spindles.
• Ground thread technology produces smooth, accurate threads with reduced friction.
• Versatile across steel, stainless steel, cast iron, and non-ferrous alloys.

Technical details

• Thread type: Metric fine (ISO DIN 13)
• Nominal diameter: 12 mm
• Thread pitch: 1 mm
• Tap standard: DIN 374B
• Tolerance class: 6H
• Chamfer form: B (approx. 3.5–5 threads)
• Flute geometry: Straight flute
• Shank type: Reinforced shank
• Overall length: 110 mm
• Thread length: 28 mm
• Shank diameter: 9 mm
• Square drive size: 7 mm
• Coating: Uncoated
• Material: HSSE (high-speed steel with cobalt)
• Manufacturing process: Ground thread
• Direction of cut: Right hand cut
• Recommended material group: Steel, stainless steel, cast iron, non-ferrous metals
• Hole type: Through hole, blind hole

Our verdict

For high-volume production where thread quality and tool life are critical, this HSSE 800 tap offers a compelling balance of performance and cost. The reinforced shank and ground thread make it a dependable choice for demanding applications.