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The EAGLE CUTTING TOOL SP-3750-24-P-I is a high-speed steel (HSS) spiral point plug tap designed for cutting internal threads in through-hole applications. The spiral point geometry pushes chips ahead of the cutting flutes and out through the exit side of the hole, reducing chip packing and improving thread quality in production and repair work. This tap is ground to a 3/8-24 UNF thread form, matching the unified fine thread standard at 3/8 inch major diameter and 24 threads per inch. Machinists, maintenance technicians, and plumbers use plug taps like this for general through-hole tapping in ferrous and non-ferrous materials.
This tap is suited for through-hole threading operations in machine shop, fabrication, and field repair settings. The plug chamfer style starts threading easily and reaches near-full thread depth without requiring a bottoming tap in most standard through-hole work. Common applications include tapping steel, aluminum, brass, and similar machinable materials where a 3/8-24 UNF internal thread is required. The import designation indicates a cost-effective sourcing for general-purpose shop use.
Designed as a general-purpose replacement or stock tap for any application requiring a 3/8-24 UNF spiral point plug tap in standard tap holders, T-handle wrenches, or CNC tapping chucks with the appropriate shank drive.
Tapping operations should be performed by a qualified machinist or technician familiar with proper speeds, feeds, and cutting fluid use for the material being tapped. Ensure the workpiece is securely clamped and the tap is aligned perpendicular to the drilled hole before starting. Use an appropriate cutting or tapping fluid to extend tool life and improve thread finish. Inspect the tap for wear or chipping before each use and replace if damaged to avoid thread damage or tap breakage in the workpiece.
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