HF Air Polisher with 1/4x20 fine thread hole and new polisher pad kit has 5/16-24 fine thread shank! How can this work?

[Don2222]

Hello
I found a 1/4x20 fine thread (M6-1.0) bolt and a 5/16-24 fine thread flange nut and welded them together to make a “Nut Head Bolt” then screwed them together with lock washers! Works great! Now this old polisher is compatible with the old and new polishing pad kits!!
See video

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Pic 1 - Air Polisher - 1/4x20 Bolt - 5/16-24 Nut - Polishing Pad
Pic 2 - 1/4x20 fine thread (M6-1.0) Bolt - 5/16-24 fine thread Flange Nut
Pic 3 - Welding the top of the nut to the head of the bolt.
Pic 4 - The new Nut-Head-Bolt
Pic 5 - Bolt is installed in Air Polisher with 1/4x20 (M6-1.0) lock washer
Pic 6 - Polishing Pad screwed into 5/12-24 fine thread nut with lock washer.
Pic 7&8 - New polishing Pad Kit part # 58187 which is the same Part # as the old kit with the pads that fit the polisher!
Pic 9 - Old polishing pad kit

 

[Don2222]

The Saga continues….
I actually found the old Harbor Freight buffing kit. Same part # 58187 and it has one piece with the 1/4-20 fine thread (M6-1.0) and Velcro which will attach to the new buffing kit. If that piece is not availabke Then welding a Nut-Head-Bolt will work as outlined above.
Does anyone have a newer air polisher with the 5/16-24 Shaft or hole for the new buffing kit?
Pic 1 - Old Kit Air Polisher Buffing Pad attachment. 1/4x20 fine thread (M6-1.0) attached bolt
Pic 2 - New Kit Air Polisher Buffing Pad attachment. 5/16-24 fine thread attached bolt,
Pic 3 - New attachment with Nut-Head-Bolt left and old Attachment that works with air polisher as is.

 

[Don2222]

Side note:
The pad attachments above will work with the Home Depot Ryobi Buffing kit too.
I use the applicator pad on the HF Air polisher and the Ryobi buffing pad on the drill to stop the old switcher-ru routine! LOL
(broken link removed)