Drill guide to install the plate with angular stability

Drill guide is used for mounting in this drill when drilling tubular bones. The drill is inserted into the hole and fixed.
The guide consists of a sleeve for the drill, the sleeve for the spoke.
Material: titanium alloy.
135.020 - for drill with 2 mm diameter.
135.030 - for drill with 3 mm diameter.
When working with the guide, an internal hexagon of 2.5 mm is used.