• For Use With 1/4" Shank Router Bits

• Compatible With Bosch MR23EVS, 1613, 1617, 1618, 1619, 1604A, 1606A, B1350 And B1450 Routers

• Place Router Bit Shank Through Nut And Collet, Then Fully Tighten With Wrench

Warning this product can expose you to chemicals including Lead, which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.