Hertel K027758AS Straight Flute Tap M10x1.50 Bottoming

Product Description

The HERTEL K027758AS is a straight flute bottoming tap designed for cutting M10x1.50 Metric Coarse internal threads in through-holes and blind holes where full thread depth close to the bottom is required. Manufactured from high-speed steel (HSS) with a bright, uncoated finish, this tap delivers consistent thread quality in a 6H class of fit with a D6 thread limit. Four straight flutes provide chip clearance and stability during tapping operations. At 2-15/16 inches overall length, it suits standard machine and hand tapping setups. The bottoming chamfer style allows threading to within a few pitches of the bottom of a blind hole, making it the preferred finishing tap in a two- or three-tap sequence.

This tap is suited for metalworking applications across manufacturing, maintenance, and repair environments. It is commonly used by machinists, toolmakers, and maintenance technicians working with ferrous and non-ferrous metals where M10x1.50 Metric Coarse threads are specified. The straight flute geometry makes it appropriate for use in materials that produce short, brittle chips such as cast iron, brass, and certain aluminum alloys. It is used as a bottoming finish tap following a taper or plug tap to achieve full thread depth in blind holes.

Key Features

• Bottoming chamfer style threads to near-bottom of blind holes
• M10x1.50 Metric Coarse thread form, 6H class of fit
• D6 thread limit for precise tolerance control
• 4 straight flutes suited for short-chip materials
• High-speed steel construction for durability in general-purpose tapping
• Bright, uncoated finish - 2-15/16 inches overall length

Compatibility

Designed as a standard M10x1.50 Metric Coarse bottoming tap for use in any tapping setup, machine tapper, or tap wrench that accepts the corresponding shank size. No specific model compatibility was provided in the product data.

Installation Notes

Installation should be performed by a qualified machinist or technician following proper tapping procedures. Ensure the workpiece is securely clamped and the tap is properly aligned with the pre-drilled hole before beginning. Apply an appropriate cutting fluid for the material being tapped to extend tool life and improve thread quality. As a bottoming tap, use it as the final step in a tapping sequence after a taper or plug tap has established the thread form.