Value Collection MSC-04439261 Straight Flute Tap 12-24 Unc

Product Description

The VALUE COLLECTION MSC-04439261 is a straight flute tap designed for cutting internal 12-24 UNC threads in a wide range of materials. Built from high-speed steel with a bright, uncoated finish, this taper chamfer tap is suited for through-hole and blind-hole applications where a gradual thread-cutting lead is preferred. It features 4 flutes, a 15/16-inch thread length, and an overall length of 2-3/8 inches. The H3 thread limit and 2B/3B class of fit make it appropriate for standard commercial fastener tolerances. Machinists, tool-and-die workers, and maintenance mechanics use this style of tap in manual and CNC tapping operations.

This tap is used in production and job-shop environments for threading steel, aluminum, cast iron, and similar materials. The taper chamfer distributes cutting load across the first 8 to 10 threads, reducing torque and the risk of breakage at entry. It is well-suited for through-hole tapping where chip evacuation is managed by clearing the tap between passes. Right-hand thread direction makes it compatible with standard right-hand tapping chucks and tap handles.

Key Features

• 12-24 UNC thread form for standard unified coarse-pitch internal threads
• High-speed steel construction provides good wear resistance across a range of workpiece materials
• Taper chamfer distributes cutting forces gradually, reducing tap breakage risk
• 4 straight flutes suited for through-hole tapping with controlled chip flow
• H3 thread limit with 2B/3B class of fit meets standard commercial fastener tolerances
• Bright, uncoated finish — no coating buildup to affect thread tolerance

Compatibility

Designed as a standard straight flute taper tap for right-hand 12-24 UNC thread cutting in through-hole applications on a wide range of ferrous and non-ferrous workpiece materials.

Installation Notes

This tap is installed by machinists and maintenance mechanics using a tap handle, T-wrench, or CNC tapping head set for the correct feed rate. Before tapping, confirm the correct drill size for a 12-24 UNC thread and ensure the workpiece is securely fixtured. Apply cutting fluid appropriate for the workpiece material to extend tap life and improve thread finish. Reverse the tap periodically during manual operation to break chips and prevent binding.