Value Collection JY4993325 M12.5x1.75 Straight Flute Tap

Product Description

The VALUE COLLECTION JY4993325 is a straight flute tap designed for cutting internal M12.5x1.75 metric special threads in metallic workpieces. Built from high-speed steel with a bright, uncoated finish, this tap delivers reliable thread-forming performance in general machining environments. It features four flutes with a plug chamfer, making it well suited for through-hole tapping where chips can exit freely ahead of the tool. The 6H class of fit produces threads within standard tolerance for metric fastener applications, and the D6 thread limit keeps the tap on the high side of tolerance to account for tap wear over time.

This tap is used in machine shop, maintenance, and production environments where metric special thread specifications are required. The plug chamfer style — typically featuring 3 to 5 tapered lead threads — makes it the most common choice for through-hole applications and general-purpose use. It is appropriate for use in drill presses, CNC machining centers, and tapping heads when run at speeds suited to high-speed steel tooling. Machinists and tool-and-die technicians are the primary users.

Key Features

• M12.5x1.75 metric special thread form for non-standard metric pitch requirements
• Four straight flutes for chip clearance in through-hole tapping operations
• Plug chamfer provides a gradual lead-in and balanced cutting action
• High-speed steel construction offers toughness and resharpening capability
• 6H class of fit with D6 thread limit for consistent, on-tolerance thread production
• Bright, uncoated finish suitable for use with cutting oil or tapping fluid

Compatibility

Designed as a straight flute plug tap for through-hole applications requiring M12.5x1.75 metric special internal threads; confirm workpiece material, pilot hole diameter, and machine spindle compatibility before use.

Installation Notes

Always use appropriate cutting fluid or tapping compound for the workpiece material to extend tap life and improve thread quality. Secure the workpiece fully before tapping and align the tap perpendicular to the hole to avoid cross-threading or tap breakage. Power down or disengage the machine spindle before manually backing out a tap. High-speed steel taps are sensitive to overspeed — consult a speeds-and-feeds reference for the specific workpiece material.