Home / Drills, End Mills and Reamers / #21 Screw Machine Drill Bit (.1590″) #21 Screw Machine Drill Bit (.1590″)$695 Out of stock SKU: TD21 Category: Drills, End Mills and Reamers Product ID: 5407 Description Additional information Description #21 (.1590″) Screw Machine Drill Bit. Made from HSS steel. Additional information Weight .06 lbs Dimensions 6 × 0.2 × 0.2 in Brand Toth Tool & Engineering Related products Out of stock #16 Screw Machine Drill Bit (.1770″) $725 Out of stock .3000″ Reamer $2900 Out of stock 8mm Ball Nose End Mill (Carbide) $3650