SLOT37 RTP SLOT Multiway switching is done using special switches that have additional contacts. Earlier switches were made of porcelain in the surface-mounted version and operated as a rotary switch with a rotary mechanism. Later, more durable Bakelite and Ebonite was used. Today they are made of modern plastics, like Polycarbonate or fire resistant ABS.|What {Do you want|Would you like} Slot Drill To {Become|Change into|Develop into|Grow to be|Turn into|Turn out to be}?