Mandrel Holders is designed for use with the 3″ x 3/8″ radial bristle discs. It allows stacking of one to four discs depending on the width of the surface to be cleaned. It feature includes 1-3/4″ x 1/4″ mandrel shank size and 3/8″ center hole. It works like a turret. It holds a wide range of bezel, forming and ring mandrels. It can be attached to the top of your bench or to the side to hold a mandrel straight up. It rotates and locks in any position with the turn of a single wing nut. It includes mounting hardware and constructed by aluminum.

Manganese oxide is also called as manganese dioxide. It is derived from manganese, a brittle metal element. It is widely distributed in the earths crust, and is essential in steel making. The element is needed for plant growth and in the physical development of higher animals. Manganese is involved in reducing the levels of nitrates in green plants. Lack of manganese causes testicular atrophy in animals. However, too much in either plants or animals is toxic. The principal use for MnO2 is for dry-cell batteries, such as the alkaline battery and the zinc-carbon battery. MnO2 is also used for production of MnO4-. It is used extensively as an oxidising agent in organic synthesis. Manganese dioxide is also used as a reagent in organic chemistry for the oxidation of benzylic alcohols.

Manganese greensand is used for removing soluble iron, manganese, and hydrogen sulfide from well water supplies. It is a purple black filter medium processed from glauconitic greensand. It is used in vertical and horizontal pressure filters as well as open gravity filterr systems. There are two distinct treatment processes associated with the use of manganese greensand that is specifically, the intermittent regeneration and the continuous regeneration both of which have become industry standards. Both the processes are relatively uncomplicated in both their design and operation and result in an efficient, reliable method for iron and manganese removal.