Value Collection JY63328637 Spiral Point Tap 1-8 Unc

Product Description

The VALUE COLLECTION JY63328637 is a spiral point tap designed for cutting internal threads in through-hole applications. Built from high speed steel (HSS) with a bright, uncoated finish, this tap features a plug chamfer and a 3-flute spiral point geometry that pushes chips forward ahead of the cutting action. This design reduces chip clogging and is well-suited for production tapping in through holes. The 1-8 UNC thread form and H11 thread limit designation make it appropriate for applications requiring a slightly oversize fit, with an oversize amount of 0.0050 inches. It is installed by machinists, maintenance technicians, and toolroom professionals working with threaded fastener assemblies.

This tap is used for producing 1-8 UNC right-hand internal threads in through-hole workpieces. It is suited for general-purpose machining in ferrous and non-ferrous materials where chip evacuation is a priority. The plug chamfer provides a gradual lead-in, making it appropriate for both manual and machine tapping setups. No coolant-through capability is present, so external cutting fluid application is standard practice during use.

Key Features

• 1-8 UNC thread form with right-hand thread direction
• 3-flute spiral point geometry pushes chips forward for through-hole tapping
• Plug chamfer for gradual thread engagement and lead-in
• H11 thread limit with 0.0050 inch oversize for controlled fit
• High speed steel construction for durability across a range of materials
• Bright uncoated finish suitable for use with standard cutting fluids

Compatibility

Designed as an OEM-style replacement or direct-use spiral point tap for standard 1-8 UNC through-hole tapping applications in machine shop, maintenance, and production environments.

Installation Notes

This tap is installed by machinists and maintenance technicians using a tap wrench, tapping head, or CNC machine spindle. Ensure the workpiece is securely fixtured and the drill hole is sized to the correct tap drill diameter for 1-8 UNC before beginning. Apply cutting fluid throughout the tapping operation to reduce heat and extend tool life. Inspect the tap for wear or chipping before each use and replace if thread quality degrades.