I'll measure the thickness of mine and post it.
I'm not sure how much they removed but I did ask and they said they calculate it all when doing the friction material. They've been doing clutches since 1930 so you'd think they have it pretty well figured out.
"We specialize in the remanufacturing of all
Industrial and Automotive clutches, custom applications,
Cranes and Overhead Cranes,
Forklifts and Tow Motors,
Mines, Mills and Quarries,
Buses, Transit, Passengers Coach and School Buses,
On and Off Road Heavy Equipment
Winches, Draglines and Logging applications
Farm Equipment and Agriculture application
Truck and Trailer shoes and brake block sets
Commercial laundry applications, shoes, bands and pads
Automotive and Light truck shoes and pads
Punch Press and Brake Press bands, shoes and clutches
Construction Equipment applications
Steel uncoiler friction rings
Gear tooth facings and segments for the rebuilders
Heavy duty woven lining for Marine applications
Motorcycle shoes and pads
Friction Rings and Specialty Brake Pads
Golf Course applications and golf cart shoes/pads
Antique and Classic Automobile shoes and pads
Printing Industries applications"