I'm in agreement with @SonofSonof40 .
0101 - Round Universal Power Bleeder - https://www.motiveproducts.com/collections/brake-bleeder-kits/products/power-bleeders-single-adapter-bleeder-kit-domestic-adapter-bleeder-kits-power-bleeders-single-adapter-bleeder-kit-import-adapter-bleeder-kits-power-bleeders-domestic-bleeder-kits-power-bleeders-import-bleeder-kits
I have bled lots of brakes the old fashioned way, and never got a bleed like you get with a powerbleeder.
Firmest pedal possible every time. Also you dont wreck the seal in your master cylinder from overtravel.
One of the best things I've purchased for my '40:
powerbleeder.
0101 - Round Universal Power Bleeder - https://www.motiveproducts.com/collections/brake-bleeder-kits/products/power-bleeders-single-adapter-bleeder-kit-domestic-adapter-bleeder-kits-power-bleeders-single-adapter-bleeder-kit-import-adapter-bleeder-kits-power-bleeders-domestic-bleeder-kits-power-bleeders-import-bleeder-kits
I have bled lots of brakes the old fashioned way, and never got a bleed like you get with a powerbleeder.
Firmest pedal possible every time. Also you dont wreck the seal in your master cylinder from overtravel.