he knotted twist cup brush has different specifications:
1.Thread: M14x1.25
M14x1.5
M14x2
5/8"-11
2.Abore hole:1/2"(12.7mm)
5/8"(15.8mm)
7/8"(22.2mm)
3.Cup color:red, blue,orange,black,zinc plated etc
4.wire material:
S:steel wire 0.35,0.5mm
SS:stainless steel wire:0.35,0.4,0.5mm
ST:Steel wire straight 0.35,0.5mm
5.package:color box,clamshell .We can make different package according to customer's design

Product Feature
1. Ideal to clean rust, painting, welding burs. 
2. reliable quality,good performance 
3. ideal for polishing metal surface

Product Specification/Models
Size: 65,75,85,90,100,125,150mm

Application
Useful tools to remove rust