Recovery spring for drilling-tapping machines

Recovery spring for drilling-tapping machines spindle.
Code 100: spring AUM18/25 for drilling - tapping machine 18B. Dimensions: external diameter mm 34,5, wire's diameter mm 2,5, free length mm 50.
Code 118: spring for drilling - tapping machine IM118 (art. 22857) and IM115. Dimensions: band's height mm 19, bend's thickness mm 0,7.