Heli-coil 3747-16 Thread Insert Tool M16 X 2.00

Product Description

The HELI-COIL 3747-16 is a hand installation tool designed specifically for installing M16 x 2.00 metric coarse thread inserts. It drives wire thread inserts into prepared tapped holes, seating them to the correct depth without power tools. Licensed HVAC technicians, plumbers, electricians, and maintenance mechanics use this tool when restoring stripped or damaged threads in aluminum, cast iron, magnesium, or steel components. The 3747-16 is sized and calibrated for M16 x 2.00 insert geometry, ensuring proper engagement and tang break-off during installation.

This tool is used in field repair and shop maintenance applications wherever M16 x 2.00 HELI-COIL inserts are being installed. Common scenarios include restoring threads in compressor housings, pump bodies, valve assemblies, and structural brackets. It is suitable for both light industrial and heavy-duty repair work. The hand-drive design makes it practical for confined spaces where a power tool would not fit or where controlled torque is required to avoid over-driving the insert.

Key Features

• Sized for M16 x 2.00 metric coarse thread inserts - no adapter required
• Hand-drive operation allows controlled installation in tight or confined locations
• Designed to seat inserts to the correct depth and break off the drive tang cleanly
• Compatible with the standard HELI-COIL insert installation process for metric coarse thread series
• Single-piece tool construction for straightforward use and storage

Compatibility

Designed for use with M16 x 2.00 metric coarse HELI-COIL wire thread inserts. Intended as the matched installation tool for that insert size and thread standard.

Installation Notes

Installation should be performed by a qualified mechanic or technician familiar with thread repair procedures. The host component must be drilled and tapped to the correct HELI-COIL specification for M16 x 2.00 before using this tool. Power down or depressurize any system before beginning thread repair work on live components. Do not use impact drivers or power tools with this hand installation tool.