TJR® Countersink 90° Set of 6 Pieces 1/4", 1/3", 2/5", 1/2", 2/3", 4/5" HSS Uncoated, for chamfering. Tool Bits Set for Steel, Aluminum, Brass, Wood, Plastic (Uncoated in Original Rose Plastic Case) US$ 25.77 Min. order: 1 piece ★★★★★ 4.8 (164 reviews) Sold : Login>>