Value Collection JY4948329 Straight Flute Tap 10-32 Unf

Product Description

The VALUE COLLECTION JY4948329 is a straight flute tap designed for cutting internal left-hand threads in a 10-32 UNF thread form. Built from high-speed steel with a bright, uncoated finish, this plug-chamfer tap is suited for through-hole and blind-hole applications where left-hand thread engagement is required. The 4-flute, straight-flute geometry provides rigidity and chip clearance in standard machining conditions. With an H3 thread limit and a 2B class of fit, it produces threads that meet common tolerance requirements for fastener assemblies. Overall length is 2.375 inches. Machinists and tool-and-die professionals reach for this style of tap when a component must resist loosening under counter-clockwise rotation loads.

This tap is intended for use in metalworking and machining environments, including manual tapping, drill press, or rigid-tap CNC operations where left-hand thread production is required. Typical applications include spindle shafts, turnbuckles, bicycle pedal axles, and any mechanical assembly where counter-rotation forces would otherwise back out a conventional right-hand fastener. The plug chamfer provides a gradual lead-in, making it well-suited for through-hole threading as well as moderately deep blind holes with adequate chip clearance.

Key Features

• Left-hand thread direction for counter-rotation fastener applications
• High-speed steel construction provides wear resistance across a broad range of workpiece materials
• 4-flute straight-flute design offers rigidity and stable chip evacuation
• Plug chamfer with 3-5 lead threads eases entry into through-holes and moderately deep blind holes
• H3 thread limit with 2B class of fit meets standard tolerance requirements for commercial fastener assemblies
• Bright, uncoated finish suitable for use with standard cutting fluids

Compatibility

Designed as a standard-style replacement or production tap for any application requiring a 10-32 UNF left-hand internal thread with a 2B class of fit and H3 thread limit.

Installation Notes

This tap is installed by machinists using a tap wrench, tapping head, or rigid CNC tapping cycle. Always secure the workpiece firmly and use an appropriate cutting fluid for the material being tapped to extend tool life and produce clean threads. Power down or disengage any rotating equipment before manually handling or changing taps. Left-hand taps require counter-clockwise rotation to advance and clockwise rotation to back out — confirm spindle direction before use in a machine setup to avoid tool breakage.