10PCS HSS Carbide Tipped Hole Saw Set

– industrial grade metal drilling hole cutter, more than 10 times longer life than bi-metal hole saw on hardened metal drilling. – extremely long lifetime and no teeth breakage for any tough job with high-end tungsten carbide technology. – provide fast and precise cuts into stainless steel, sheet metal, cast iron, mild steel, aluminum and frp – smooth cut with perfect cutting quality for every hole. – this hole saw set includes : 10pcs hole cutters with dimensions 53mm, 50mm, 45mm, 35mm, 30mm, 25mm, 22mm, 20mm, 18mm, 16mm