Woodworking Drill Bit Depth Stop Jig

Woodworking Drill Depth Stops for Four Drill Bit Sizes

I designed four depth stop collars compatible with different drill bit diameters. Here are the key points:

1. Compatible with 4mm, 6mm, 8mm, and 10mm drill bits.
2. Designed to work with M3×12 bolts and nuts, allowing secure tightening and precise depth control.
3. Two versions are available:
   • Plate One for the more common H = 5.4–5.5mm M3 hex nuts;
   • Another designed for H = 6mm M3 nuts sold in Maker Supply.
4. Each size comes in two styles:
   • A standard version;
   • And a widened version with an increased contact area to better withstand higher pressure.

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