Value Collection JY8962540 Straight Flute Tap 1/2-13 Unc

Product Description

The VALUE COLLECTION JY8962540 is a straight flute tap designed for cutting 1/2-13 UNC internal threads in a wide range of materials. Built from high-speed steel (HSS) with a bright, uncoated finish, this tap delivers reliable cutting performance in general-purpose threading applications. The 4-flute, plug chamfer design provides a gradual lead-in that distributes cutting forces evenly across the flutes, making it well suited for through-hole threading. Overall length is 3.375 inches, and the H11 thread limit indicates a slightly oversize grind of 0.0050 inches, accommodating standard tap tolerances for UNC threads. Right-hand thread direction is standard for conventional fastener applications.

This tap is intended for use by machinists, maintenance technicians, and fabricators working with through-holes in steel, aluminum, cast iron, and similar workpiece materials. It is appropriate for manual tapping with a tap wrench or use in low-speed drilling equipment where straight flute taps are preferred. The plug chamfer style — with approximately 3 to 5 lead threads — makes it a practical first-choice tap for production and repair threading work across job shop, MRO, and field service environments.

Key Features

• 1/2-13 UNC thread size for standard inch-series fastener compatibility
• 4 straight flutes provide balanced cutting action and chip clearance in through-hole applications
• Plug chamfer (approximately 3-5 lead threads) eases entry and distributes cutting load
• High-speed steel construction offers good wear resistance across a range of workpiece materials
• H11 thread limit with 0.0050 inch oversize grind for standard UNC tolerance class fits
• Bright, uncoated finish — no coating build-up on cutting edges; suitable for use with cutting fluid
• Right-hand thread direction for standard conventional threading operations

Compatibility

Designed for cutting 1/2-13 UNC right-hand internal threads; compatible with standard 1/2-13 tap holders, T-handle tap wrenches, and adjustable tap wrenches sized for this thread range.

Installation Notes

Threading operations should be performed with the workpiece securely fixtured and the tap aligned perpendicular to the hole axis to prevent tap breakage and thread misalignment. Apply appropriate cutting fluid for the workpiece material before and during tapping to reduce heat and extend tool life. For manual tapping, reverse the tap periodically to break chips. Follow applicable shop safety practices and ensure spindle speed is appropriate for the material when using power equipment.