Baer Heli Coil Tap - Wire Thread Insert - Bottoming Tap (STI) - BS. Brass - 1/4 x 26

The Baer Heli Coil Tap is the precise, durable tool you reach for when you need to restore damaged threads or create rock‑solid threads for wire thread inserts. Designed for 1/4-26 internal threads, this bottoming tap seals the deal in blind holes, delivering full thread depth where it matters most and ensuring reliable performance in demanding applications.

Why this tap stands out

• Bottoming tap design—cuts threads all the way to the bottom of a blind hole, guaranteeing complete engagement for Heli‑Coil style inserts and reinforced joints.
• Precisely sized for 1/4-26 UNF threads—optimized geometry and pitch give clean, accurate threads that accept inserts with minimal effort and maximum grip.
• Durable construction tailored for repair work—built to withstand repeated use in repair scenarios, from aerospace and automotive to small‑scale machinery and DIY projects.
• Trusted compatibility with wire thread inserts—designed to create the ideal starting point for reliable reinforcement, preventing future stripping and loosening.
• Brass specification for reliable performance in a range of environments, offering corrosion resistance and steady cutting action that helps maintain thread integrity over time.

Practical use cases

• Repair stripped or worn threads in aluminum housings, engine components, or tool bodies where insert reinforcements are needed.
• Rebuild damaged threads in fixtures and brackets that see frequent assembly/disassembly, extending the life of costly components.
• Prepare blind holes in soft metals and certain plastics for durable, insert-supported fastenings in prototypes and production runs.

How to get the best results

• Prepare the hole: deburr, remove chips, and ensure the hole is clean and square to the face.
• Lubricate the tap with a light cutting oil to reduce heat and extend cutting edge life.
• Begin with a gentle turn to establish alignment, then apply steady pressure with regular back‑driving strokes to break chips.
• Tap to the full depth of the hole for optimal insert engagement, then wipe the thread and install your Heli‑Coil or equivalent wire insert.

Designed for professionals and serious DIYers who demand dependable thread repair and reinforcement, the Baer Heli Coil Tap is your go‑to tool for precision, durability, and lasting performance. When precision matters and failed threads aren’t an option, reach for this bottoming tap to restore strength and extend the life of your assemblies.