FREE SHIP (United States)

They are 5/8"-11 Thread.

NOT M14 Thread.

Grinder or polisher speed must be lower than 6500 RPM when using with them.

This package carries (a)-(c):

(a) 1 Piece of 1 3/8" / 35mm Diamond core bit / hole saw for ston concrete (with 5/8"-11 Thread arbor).

(b)  1 Piece of E10 (10mm / 3/8") 

Bevel / 45 Degree Bullnose Diamond Brazed Router Bit/Profiler for 10 MM Thick or High granite concrete travertine (5/8"-11 Thread arbor). 

(c) 7 Pieces of 1 3/8" / 35mm Diamond Wet Polishing Drum:

1 X Grit 50 100 200 400 800 1500 3000.

They have 5/8"-11 Thread arbor.

Grinder or polisher speed must be lower than 6500 RPM when using with them.