Value Collection MSC-04460283 Straight Flute Tap 1/4-28 Unf

Product Description

The VALUE COLLECTION MSC-04460283 is a straight flute tap designed for cutting internal threads in through-holes and shallow blind holes. Built from high-speed steel with a bright, uncoated finish, this tap produces 1/4-28 UNF right-hand threads with a plug chamfer that eases entry and distributes cutting load across the leading threads. With 4 flutes and a thread limit of H2, it is suited for threading ferrous and non-ferrous materials in standard machining and maintenance applications. The 1-inch thread length and 2.5-inch overall length make it a compact, practical choice for bench work, drill press setups, and hand tapping operations.

This tap is used in machine shops, maintenance and repair operations, and field service environments where 1/4-28 UNF threaded holes are required. The plug chamfer style makes it appropriate for starting threads from the top of a through-hole or a hole with sufficient depth to accommodate the chamfer lead. It is a commonly stocked size for general metalworking, equipment repair, and light manufacturing tasks performed by machinists, millwrights, and maintenance technicians.

Key Features

• 1/4-28 UNF thread form for fine-pitch threading applications
• Plug chamfer provides a balanced entry and distributes cutting forces over multiple leading threads
• 4 straight flutes for chip clearance in through-hole and short blind-hole work
• High-speed steel construction offers good wear resistance across a range of workpiece materials
• Bright uncoated finish suitable for use with cutting oils and standard tapping fluids
• H2 thread limit provides close tolerance control on finished thread fit

Compatibility

Designed as a standard replacement or stocking tap for 1/4-28 UNF threading operations. Compatible with standard tap handles, T-handle wrenches, and machine tap holders sized for 1/4-inch shank taps.

Installation Notes

Always use appropriate cutting fluid or tapping oil to extend tool life and improve thread finish. Secure the workpiece firmly before tapping and ensure the tap is started square to the hole to prevent thread misalignment or tap breakage. Back off periodically when hand tapping to break chips. Follow applicable shop safety practices and machine guarding requirements when operating in a powered setup.