Value Collection MSC-04472247 Straight Flute Tap 3/8-24 Unf

Product Description

The VALUE COLLECTION MSC-04472247 is a straight flute tap designed to cut 3/8-24 UNF internal threads in a variety of materials. With 4 flutes and a plug chamfer, it is suited for through-hole tapping where chips can exit freely ahead of the tap. The tool is manufactured from high-speed steel with a bright, uncoated finish, providing solid wear resistance for general-purpose threading applications. The H3 thread limit ensures the tap produces threads within the 3B class of fit, which is the standard tolerance for most general mechanical assembly. This tap is commonly used by machinists, maintenance technicians, and fabricators working with threaded fastener installations.

This tap is intended for right-hand threading in through-hole applications on materials such as mild steel, aluminum, brass, and similar machinable metals. The plug chamfer style makes it a general workhorse for production and repair threading where a starting chamfer is not required. With a thread length of 1.25 inches and an overall length of 2.9375 inches, it fits standard tap handles and tapping heads used in manual and machine tapping setups. It is appropriate for both shop production environments and field repair work where 3/8-24 UNF threads are specified.

Key Features

• 3/8-24 UNF thread size with 4 straight flutes for efficient chip evacuation in through-hole applications
• Plug chamfer style for standard through-hole tapping without requiring a bottoming or taper lead
• High-speed steel construction provides durability across a range of machinable metals
• H3 thread limit produces threads conforming to 3B class of fit for general mechanical assembly
• Bright, uncoated finish suitable for use with standard cutting fluids
• Right-hand thread direction for use with standard tap handles and tapping machines

Compatibility

Designed as a standard replacement or stock tap for any application requiring 3/8-24 UNF right-hand internal threads at a 3B class of fit using a plug chamfer style.

Installation Notes

This tap should be installed in a properly sized tap handle or machine tapping head rated for the tool shank diameter. Always drill the correct UNF tap drill size before tapping and ensure the workpiece is securely clamped. Apply an appropriate cutting fluid for the material being tapped to reduce heat and extend tool life. Do not force the tap if resistance increases suddenly, as this may indicate chip packing or material hardness beyond the tool rating.