Hertel K027713AS25 Hand Tap M2.2x0.45 Plug Tin Hss

Product Description

The HERTEL K027713AS25 is a metric hand tap designed for threading M2.2x0.45 holes in a wide range of materials. It features a plug chamfer, three straight flutes, and a titanium nitride (TiN) coating applied over a high speed steel (HSS) body. The plug chamfer style — typically 3 to 5 threads of taper — makes this tap well suited for through-holes and blind holes where partial thread lead-in is acceptable. At 1.75 inches overall length with a 0.4375-inch thread length, this is a compact tap built for small-diameter precision threading work in production and repair environments.

This tap is intended for hand tapping operations in metal fabrication, maintenance, and repair applications where M2.2 metric coarse threads are required. The D3 thread limit designates a tight tolerance class suitable for standard metric thread fits. The TiN coating improves surface hardness and lubricity, reducing friction and extending tool life compared to uncoated HSS taps. It is typically used by machinists, toolmakers, and maintenance technicians working with small metric fastener sizes in steel, aluminum, brass, and similar machinable materials.

Key Features

• M2.2x0.45 metric coarse thread form, right-hand cut
• Plug chamfer with 3-flute straight flute geometry for general-purpose through and blind hole tapping
• TiN coating over HSS body for improved wear resistance and reduced cutting friction
• D3 thread limit for standard metric tolerance fits
• 1.75-inch overall length and 0.1410-inch shank diameter for use in standard tap holders and wrenches
• No coolant-through feature — intended for hand tapping with cutting fluid applied externally

Compatibility

Designed as an OEM-style tooling component for hand tapping M2.2x0.45 metric coarse threads; compatible with standard tap wrenches and holders sized for a 0.1410-inch shank diameter with a 0.1100-inch square drive.

Installation Notes

Hand tapping should be performed by a qualified machinist or technician using an appropriately sized tap wrench. Apply a suitable cutting fluid for the workpiece material before and during tapping to prevent galling and tool breakage. Back off the tap periodically to clear chips, especially in blind holes. Inspect the tap for wear or chipping before each use — a damaged tap used in a small-diameter hole can be difficult to extract.