Baer Heli Coil Tap - Wire Thread Insert - Bottoming Tap (STI) - BSP - 1/4 x 19

Baer Heli Coil Tap is a precision tool built for durable thread repairs and reliable reinforcements using genuine Heli-Coil wire inserts. Designed for BSP applications with a 1/4-19 internal thread size, this bottoming tap (STI) delivers clean, repeatable threads that stand up to real-world use.

• Bottoming geometry for full-depth engagement: taps all the way to the bottom of the hole, ensuring inserts seat flush and the threaded connection achieves maximum strength and load distribution.
• Repair and reinforcement: specifically engineered to create robust internal threads that restore damaged holes and extend the life of components under vibration, heat, and repeated assembly cycles.
• Size and compatibility: the 1/4-19 internal thread size is a commonly used standard, making it a versatile choice for a wide range of metalworking and maintenance projects.
• Durable construction: crafted for longevity in demanding workshop environments, with sharp, precise cutting edges that yield accurate, true threads with each use.
• Efficient workflow: designed to pair seamlessly with compatible Heli-Coil inserts, enabling quick repairs that minimize downtime and keep production moving.
• Broad application range: ideal for steel, aluminum, cast iron, and other common substrates where restoring thread integrity is critical—engine blocks, housings, brackets, and machinery components.

With the Baer Heli Coil Tap, you’re choosing a practical, field-proven solution for restoring thread performance. The bottoming design ensures the coil insert has full engagement, translating to higher torque tolerance and resistance to pull-out in demanding environments. This means fewer returns, less rework, and more dependable fastener performance across your repairs and builds.

Key benefits at a glance: - Restores strength to worn, stripped, or damaged holes - Extends service life of critical assemblies - Improves reliability in high-stress, high-vibration applications - Supports fast, repeatable repair workflows in shops and on-site maintenance

Tip for best results: keep cutting fluid on hand and work with steady, perpendicular alignment to avoid mis-taps. After tapping, deburr the hole and clean chips before installing the insert for a smooth, durable finish.