Value Collection MSC-04619722 Spiral Flute Tap 3/4-10 Unc

Product Description

The VALUE COLLECTION MSC-04619722 is a spiral flute tap designed for cutting 3/4-10 UNC internal threads in a wide range of materials. Built from high-speed steel with a bright/uncoated finish, this tap features four flutes with a 45-degree helix angle and a fast flute style that efficiently evacuates chips upward and out of the hole during the tapping operation. The modified bottoming chamfer allows threading close to the bottom of blind holes while still providing enough lead to start the tap cleanly. Weighing 0.28 pounds and measuring 4.25 inches overall, it is a solid choice for production and maintenance machining environments.

This tap is suited for use in machine shops, maintenance and repair operations, and manufacturing facilities where accurate UNC threads are required in blind or through-hole applications. The right-hand thread direction and H3 thread limit make it appropriate for standard tolerance threading in steel, aluminum, cast iron, and similar materials. It is typically run in a CNC machining center, turret lathe, or drill press with a tapping attachment. The modified bottoming chamfer makes it particularly useful when thread depth requirements leave little clearance at the bottom of a blind hole.

Key Features

• 3/4-10 UNC thread form with right-hand thread direction for standard fastener compatibility
• Modified bottoming chamfer enables threading close to the bottom of blind holes
• 45-degree helix angle with fast flute style promotes efficient upward chip evacuation
• H3 thread limit provides controlled tolerance for consistent fit with standard UNC fasteners
• High-speed steel construction offers good wear resistance across a broad range of workpiece materials
• Bright/uncoated finish allows easy visual inspection of cutting edges before and after use

Compatibility

Designed for cutting 3/4-10 UNC right-hand internal threads in blind and through-hole applications across common engineering materials. Verify spindle tooling and tapping attachment compatibility before installation.

Installation Notes

This tap should be installed by a qualified machinist following standard tapping procedures. Ensure the workpiece is securely fixtured and the spindle speed is set to the appropriate surface footage for the workpiece material and tap size before beginning the operation. Use a recommended cutting fluid or tapping compound to extend tool life and improve thread quality. Inspect the tap for chipping or wear before each use and replace if cutting edges are damaged.