Lezyne was founded on March 1, 2007 by an industry icon by the name of Micki Kozuschekand his partners. Lezyne’s goal was to engineer and produce premium quality accessories that meet the same high standards as high- end bicycle components. Since 2007, Lezyne has increased their product line, and has maintained their high standards. Shop quality external bottom bracket tool constructed of heat treated steel that is CNC- machined for perfect engagement. Designed for use with the 32mm CNC rod, adjustable wrench, or 3/8″ socket driver.