Introduction: Wedge Chuck Puller DIY

A simple and easy build that helps when needed to change my chuck safely.
Isn't something complicated but can do the job good enough

and without any damage to chuck or to cone.

Construction time 15 minutes.

Step 1: Tools and Materials

Remember Safety First.

Welding Cutting and Grinding Tools are Dangerous!

Do it at your own Risk!

Use Always the Suitable Protective Equipment.


Angle grinder 115mm / 4 ½” or 125mm / 5”

Cutting disk & Grinding disk

according to your grinder ø115 x 1mm / ø4 ½” x 0.04” or ø125 x 1mm / ø 5” x 0.04”

Drill press

Drill bits: Ø6 - 10 - 13 - 16.5mm


Flat bar 80x5mm about 70~80mm

Step 2: Plans

No needed any plan just see the photo.

Step 3: The Build

1. According to your drill choke cone dia

(in my case it was a 16mm cone)

do a hole at the center of each piece onto the marked line

about 0.50~1.00mm bigger than the cone dia.

2. Use a combination of appropriated drill bits

and make the two holes at the desirable dia.

e.g.: Ø6, 10, 13 & 16.5 mm for an Ø16mm cone.

3. Remove/cut the marked areas
and then separate the two pieces from flat bar.

4. Using an angle grinder make each end wedge like the photo.

I will be happy to see your try if you want to share it.

Thanks for your reading.

Good Luck if you try it.

Never say I can't do it.

Necessity is the mother of invention.