Regal Cutting Tools 027766AS M12x1.75 Bottoming Hand Tap

Product Description

The REGAL CUTTING TOOLS 027766AS is a straight-flute hand tap designed for cutting M12x1.75 metric coarse threads in blind and through holes. Built from high speed steel with a bright uncoated finish, it delivers consistent thread form across a wide range of ferrous and non-ferrous materials. The bottoming chamfer allows the tap to cut threads to the very bottom of a blind hole, making it the correct choice when full thread depth is required close to a hole floor. With 4 flutes and a 6H class of fit at a D6 thread limit, this tap produces accurate, tolerance-controlled threads suitable for standard metric fastener engagement. Licensed machinists, maintenance technicians, and tool-and-die tradespeople are the primary users.

This tap is suited for manual tapping operations on machine components, fixtures, tooling plates, and general fabrication work requiring M12x1.75 metric coarse internal threads. The bottoming configuration makes it especially relevant in applications where a plug or taper tap has already started the thread and full depth must be achieved. It is used in job shops, maintenance and repair operations, and production environments where hand tapping is the specified method.

Key Features

• Bottoming chamfer for threading to the bottom of blind holes
• High speed steel construction for durability across common workpiece materials
• Bright uncoated finish suitable for use with cutting fluids
• 4-flute straight flute geometry for controlled chip formation in hand tapping
• 6H class of fit with D6 thread limit for standard metric thread tolerance
• Right-hand thread direction, M12x1.75 metric coarse pitch

Compatibility

Designed as a standard replacement or supplemental hand tap for M12x1.75 metric coarse bottoming applications in manual tapping sets and tooling inventories.

Installation Notes

Hand tapping should be performed with the workpiece secured and the tap aligned perpendicular to the hole using a tap handle or tap wrench of appropriate size for the M12 shank. Apply cutting fluid rated for the workpiece material before and during tapping to reduce friction and extend tool life. Reverse the tap periodically to break chips and prevent tap binding in deeper holes. Never force a tap against hard resistance, as high speed steel taps are susceptible to breakage under torsional overload.