Package including-- 3pcs angle grinder extension shaft(3inch, 4inch and 5.5inch),1pc adjustable wrench, 3 sets 5/8"-11 press plate. Extension connecting rod--Made of 45# steel with nickel plating workmanship to ensure its practicality and durability, you can use 3 extension rods individually, or connect them for a longer rod to help you reach the narrow, tight or awkward place which normal grinder or polisher can not touch. Adjustable spanner wrench-- Made of carbon steel, the rubber-coated handle provides a comfortable grip and strong holding power, adjustable range from 0.6 to 2.1 inches. Grinder flange nut-- Made of quality steel material, solid and durable,and please note, in order for the nut to work better, there is lubricating oil on the nut. Compatibility-- The fit for all 5/8"-11 thread angle grinders and polishers.