Value Collection MSC-04427340 Straight Flute Tap 8-32

Product Description

The VALUE COLLECTION MSC-04427340 is a straight flute tap designed to cut internal threads in through-holes and moderately shallow blind holes. Built from high-speed steel (HSS) with a bright, uncoated finish, this tap produces 8-32 UNC threads with a right-hand cutting direction. The taper chamfer — typically 7 to 10 threads — distributes cutting load gradually across the leading edge, making it well-suited for starting threads cleanly in softer metals, plastics, and general-purpose stock. With four flutes and an H2 thread limit, it holds close tolerances for a 3B class of fit, the standard commercial tolerance used in most fastener and assembly applications.

This tap is used in machine shop, maintenance, and light manufacturing environments wherever 8-32 UNC threaded holes are required. At 2.125 inches overall length and 0.75 inches of thread length, it fits standard tap wrenches and tapping heads without adapter hardware. Typical applications include tapping aluminum, mild steel, brass, and engineering plastics. The taper chamfer entry makes it a preferred choice when starting a thread by hand or when tapping into an open, through-hole configuration.

Key Features

• 8-32 UNC thread form, right-hand cutting direction
• Taper chamfer distributes cutting load for easier thread entry
• 4-flute geometry provides good chip clearance in general-purpose materials
• H2 thread limit for 3B class of fit — standard commercial tolerance
• High-speed steel construction offers good wear resistance without coating
• Bright, uncoated finish suits non-reactive, lower-temperature tapping operations

Compatibility

Designed as a standard replacement or stock tap for any application requiring 8-32 UNC internal threads at 3B class of fit tolerance.

Installation Notes

Machinists and maintenance technicians install taps by hand using a tap wrench or with a drill press and tapping head running at appropriate low speed for the material. Always use cutting fluid or tapping compound to reduce heat and extend tool life. Back the tap off every one to two turns to break and clear chips, particularly in blind holes. Never force a tap against resistance — a broken tap is difficult to remove without damaging the workpiece.