Break-Off brass insert for 5mm shafts with HIT (Hidden Insert Technology). The insert will disappear completely in the shaft whilst the inserts come with a tool to achieve this. In addition to the tool, every dozen also comes with a small grinding stone in order to flatten the shaft.

This brass insert weighs 75 grain in unbroken condition and can be broken to 50 grain.

For more information, please visit the manufacturer website for this product .