Home / Shop / Parts and Accessories / Workholding Accessories / Sine Keys and Vise Keys / Hardened Standard Keys (Pair) Hardened Standard Keys (Pair) Filters / Search Search All Products Search for: Search Showing all 3 results Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low Kurt 4″ D-Series Keys, Set, 1/2 X 1/2 IN – D30-50D30-50 $44.00 Kurt 6″ D-Series Keys, Set, 11/16 IN – D50-50D50-50 $38.00 Kurt 8″ or 10″ D-Series Keys, Set, 13/16 IN – D80-50D80-50 $43.00