Value Collection JY4991204 M3x0.50 Straight Flute Tap Hss

Product Description

The VALUE COLLECTION JY4991204 is a straight flute plug tap designed for cutting internal metric coarse threads in a wide range of materials. Built from high-speed steel with a bright, uncoated finish, this tap produces M3x0.50 threads to a 6H class of fit with a D3 thread limit, meeting standard tolerance requirements for general-purpose metric fastener applications. With an overall length of 1-15/16 inches and a thread length of 5/8 inches, the plug chamfer allows for easy starting in through holes and blind holes with adequate clearance. Machinists, tool-and-die makers, and maintenance technicians use this tap in hand tapping operations and machine tapping setups alike.

This tap is suited for threading M3x0.50 metric coarse holes in light metals, plastics, and mild steel in both production and maintenance-repair-overhaul environments. The right-hand thread configuration is standard for the vast majority of metric fastener applications. Its compact size makes it practical for tight-clearance work on small assemblies, fixtures, and equipment components where an M3 threaded hole is required.

Key Features

• M3x0.50 metric coarse thread profile to 6H class of fit with D3 thread limit
• Plug chamfer (3-5 thread lead) for easy starting in through holes and blind holes with clearance
• 3-flute straight flute geometry provides chip clearance and stability during cutting
• High-speed steel construction delivers durability across a range of workpiece materials
• Bright, uncoated finish compatible with standard cutting fluids and tap lubricants
• Right-hand thread direction matches standard metric fastener orientation

Compatibility

Designed as a standard replacement or add-stock plug tap for M3x0.50 metric coarse threading applications in hand tapping and machine tapping setups. No coolant-through capability; suitable for conventional tapping with applied cutting fluid.

Installation Notes

Tapping operations should be performed by a qualified machinist or maintenance technician following established shop safety practices. Secure the workpiece firmly and ensure the hole is drilled to the correct tap drill diameter for M3x0.50 threads before beginning. Apply an appropriate cutting fluid or tapping compound to reduce heat and extend tool life. Back the tap out periodically to clear chips, especially in blind-hole applications, to prevent tap breakage.