These are made for drill, not for grinder
Used to remove rust,weld slag,coatings,rubber,paints,powders.silicone and clean or maintenance equipment
Normally used to clean metal surface or stone surface and pipeline surface
Material: twist wires are made of carbon steel,other parts are made of zinc alloy and steel
Size: whole diameter is 1"(25mm),carbon wire diameter is 0.02"(0.5mm)
These are very thick and strong wires
Shank diameter is 1/4"
1/4" shank diameter suit for most drills
Max operation speed(RPM) is 4500 RPM
Twist knot wire brush could last much longer time than normal wire knot brush
We also supply other size like 3/4",2",3",4" wire knot brush or wheels .Pls search from our brand "" on amazon if you need

Package include:
3 packs 1" (25mm) twist knot cup wire brush
MATERIAL: TWIST WIRES ARE MADE OF CARBON STEEL,OTHER PARTS ARE MADE OF ZINC ALLOY AND STEEL
SIZE: DIAMATER IS 1"(25MM),ROUND SHANK DIAMETER IS 1/4",ThICK WIRE DIAMETER IS 0.02"(0.5MM)
MAX OPERATION SPEED(RPM) IS 4500 RPM, THESE ARE MADE FOR DRILL, NOT FOR GRINDER
TWIST KNOT CUP WIRE BRUSH COULD LAST MUCH LONGER TIME THAN NORMAL WIRE KNOT BRUSH
USED TO REMOVE RUST,WELD SLAG,COATINGS,RUBBERS,PAINTS,POWDERS,SILCONE AND CLEAN OR MAINTENANCE EQUIPMENT

3 Packs 1 inch Twist Wire Knot Cup Brush with 1/4 inch Round Shank for Drill,...