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Fits many models of Bosch, Dewalt and Hitachi (Metabo-HPT, Hikoki) routers (and their clones!). Also fits Skil 1810, Blue Hawk 1/2" Router, Craftsman 320.37595
Fits: DW621 Type 1 2HP Plunge Router DW616D Type 1 D-Handle Router DW616 Type 1 Fixed Base Router DW616M Type 1 Fixed Base Router DW616P Type 1 Router DW616S Type 1 Router DW618B3 Type 1 Three Base Router Kit DW618B3E Type 1 Base Router Kit DW618D Type 1 D-Handle Router DW618 Type 1 Fixed Base Router DW618M Type 1 Fixed Base Router DW618P Type 1 Router DW621 Type 2 2HP Plunge Router DW621-220 Type 1 Router DW621 Type 3 2-HP Plunge Router DW618PKB (Type 1) Combo Kit Router Fxd Bosch: 1617, 1617EVS, 1618, 1618EVS, 1613, 1613EVS, 1613AEVS, 1619EVS, MRC23EVSK, MRF23EVS, MRP23EVS, Skil 1810, Blue Hawk 1/2" Router, Craftsman 320.37595
( 8 sides slotted design probably copied from the ER collets system)
