Value Collection MSC-04462180 Hand Tap 3/8-16 Unc Taper

Product Description

The VALUE COLLECTION MSC-04462180 is a 3/8-16 UNC straight flute hand tap designed for cutting right-hand internal threads in through and blind holes. Manufactured from high speed steel with a bright uncoated finish, this tap is built for threading operations in a range of common work materials. The taper chamfer — spanning several threads at the lead — guides the tap into the hole progressively, distributing cutting load across multiple teeth. With 4 flutes and an H2 thread limit, it holds tight tolerances suitable for standard fastener fits. Overall length is 2-15/16 inches with a 1-1/4 inch thread length. Machinists, toolroom technicians, and maintenance tradespeople use this tap for hand-threading operations in production and repair settings.

This tap is suited for threading 3/8-16 UNC holes in ferrous and non-ferrous metals, plastics, and similar machinable materials. The taper chamfer style is particularly effective when starting threads in a new hole, making it a first-tap choice in a taper-plug-bottoming sequence. It fits standard tap wrench drives and is commonly used in bench work, field maintenance, and light machine shop applications where hand tapping is required.

Key Features

• 3/8-16 UNC thread form for compatibility with standard inch-series fasteners
• Taper chamfer distributes cutting load across the lead threads for easier starting
• H2 thread limit for close-tolerance standard fits
• 4 straight flutes for chip clearance in through-hole and shallow blind-hole applications
• High speed steel construction provides hardness and wear resistance for hand tapping
• Bright uncoated finish — no coating buildup that could affect thread tolerance

Compatibility

Designed as a standard hand tap for use in any application requiring 3/8-16 UNC right-hand internal threads. Fits standard tap wrenches and T-handle tap drivers sized for the 3/8-inch tap shank.

Installation Notes

Hand tapping should be performed by a machinist or qualified tradesperson using a properly aligned tap wrench. Always drill the correct tap drill size for 3/8-16 UNC before tapping and ensure the hole is clear of chips. Apply cutting fluid appropriate to the work material to reduce friction and extend tap life. Reverse the tap periodically to break chips and prevent binding, especially in deeper holes.