5 Pack, 3" 24 TPI Bi-metal Blade, For Thin Material, Straight Cuts, Flexible & Break Resistant, In Metal, Non-Ferrous Metal, Aluminum, Sheet Metal, Plexiglass1/16" - 1/8", Fits Bosch Models 1581AVS, 1581AVSK, 1584AVS, 1584AVSK, 1587AVS, 1587AVSK, 1587AVSP, As Well As Other Older Bosch Models.