Seat Rail Drill Guide for Tall and Extra Tall Seats - 3D Printed

This is a physical part. I print it and ship it to you.

The Tall and Extra Tall Seat Rail plans need two holes at each end of each rail: a bolt hole straight down through the edge, centered in the 1" thickness, and a shaft hole straight through the face. This 3D printed guide caps the end of the rail and puts both holes in the right spot, square, without a drill press. One guide does all four corners.

Imperial (US) or Metric: choose above. Imperial is sized for 21/64" and 5/16" bits. Metric is sized for 8.5 mm and 8 mm bits. Pick the one that matches the bits you have.

What you get

• (1) HA Woodworks Seat Rail Drill Guide, 3D printed
• Step-by-step instructions: marking, drilling order, bit length, and tape flag depths for Tall and Extra Tall

Not included (you'll need)

• Rails cut to size from the Tall and Extra Tall Seat Rail Plans
• A 5/16" bit (or 8 mm) for the shaft holes
• A 21/64" extension bit at least 6-1/2" long (or 8.5 mm, at least 165 mm) for the bolt holes. A 6" bit covers Tall only. A 12" covers both.
• A hand drill and a couple of clamps

Have a 3D printer? The STL file is sold separately ($10) so you can print your own.

Questions or problems

If there's a problem with your drill guide, contact chris@hawoodworks.com within 30 days of delivery and we'll work with you to make it right.