Value Collection MSC-04469086 Hand Tap 1-8 Unc Hss

Product Description

The VALUE COLLECTION MSC-04469086 is a 1-8 UNC straight-flute hand tap designed for cutting internal threads in a wide range of metals and materials. Built from high speed steel (HSS) with a bright, uncoated finish, this tap delivers reliable performance in manual tapping operations. The plug chamfer style features a standard lead-in that makes it suitable for through-hole and most blind-hole applications. With an overall length of 5.125 inches and a thread length of 2.5 inches, it provides adequate reach and engagement for standard production and maintenance threading tasks. The H2 thread limit ensures a controlled fit for general-purpose UNC threading work.

This tap is used in machine shops, maintenance facilities, and general fabrication environments where 1-8 UNC internal threads are required. The 4-flute straight flute configuration is well suited for tapping shorter-chipping materials such as cast iron, brass, and mild steel by hand or with a tapping wrench. It is a standard choice for tool rooms and industrial maintenance applications where consistent thread quality is needed without power equipment.

Key Features

• 1-8 UNC thread size with H2 thread limit for controlled tolerances
• Plug chamfer with 3-5 lead threads for easy starting in through-holes and shallow blind holes
• 4-flute straight flute design suited for shorter-chipping materials
• High speed steel construction for durability across a range of workpiece materials
• Bright, uncoated finish for use with standard cutting fluids
• Right-hand thread direction, standard UNC specification

Compatibility

Designed as an OEM-style replacement or direct-use hand tap for 1-8 UNC through-hole and blind-hole threading applications in standard manual and machine-assisted tapping setups.

Installation Notes

This tap is installed by machinists and maintenance technicians using a tap wrench or appropriate holder. Always use a cutting fluid compatible with the workpiece material to extend tap life and improve thread quality. Ensure the tap is aligned perpendicular to the workpiece before starting to prevent cross-threading or breakage. Do not force the tap if resistance increases unexpectedly — back off to clear chips before continuing.