B-KIDS TAP M27 DIN-376C R40 (6H) HSSE 800 Metric Coarse Thread Tap

With a 6H tolerance class and cobalt-enriched HSSE steel, this M27 tap delivers clean, precise threads in tough materials. The DIN 376 Form C lead-in and straight flutes make it a dependable choice for through-hole threading in steels, stainless steels, and cast iron.

Overview

The B-KIDS TAP M27 DIN-376C R40 (6H) HSSE 800 is a high-performance machine tap engineered for metric coarse threads. It cuts M27 x 3.0 mm threads to a 6H tolerance, ensuring a standard fit for bolts and fasteners. The tap features a Form C chamfer (2-3 thread lead) that gradually forms the thread, reducing cutting forces and improving tool life. Its straight flute design efficiently evacuates chips in through-hole applications, while the bright finish minimizes friction and prevents chip welding.

What stands out

• HSSE cobalt steel withstands high temperatures and maintains hardness, ideal for stainless and alloy steels.
• DIN 376 standard ensures compatibility with common tap holders and collets.
• Form C lead-in (2-3 threads) provides a balance between easy starting and full thread depth.
• Bright uncoated finish offers low friction and excellent chip flow.
• Right-hand cutting direction suits standard clockwise threading operations.

Technical details

• Thread size: M27
• Thread pitch: 3.0 mm (metric coarse)
• Thread tolerance: 6H
• Standard: DIN 376
• Lead form: Form C (2-3 threads lead)
• Material: HSSE (high-speed steel with cobalt)
• Application: Through holes
• Flute type: Straight flute
• Overall length: 160 mm
• Thread length: 45 mm
• Shank diameter: 20 mm
• Square drive: 16 mm
• Cutting direction: Right-hand
• Surface finish: Bright (uncoated)
• Recommended material group: Steels, stainless steels, cast iron, non-ferrous metals (ISO P, M, K, N)
• Manufacturer series: 800
• Number of flutes: 4

Our verdict

Engineered for demanding through-hole threading, this HSSE tap combines cobalt toughness with a precise 6H tolerance to deliver reliable performance in tough steels and stainless alloys.