Carbide Tipped High Speed Steel Hole Saw Cutters 1-1/2&rdquo; (Pkg of 2) Save when you buy the 2 pack! Carbide Tipped High Speed Steel Hole Saw Cutters - Our Tungsten Carbide Tipped Saw is extra durable for long life. Carbide Tipped Saw For Hard Materials Tungsten carbide tips are strengthened with the latest brazing technology ensuring a longer drilling life - 10x longer than standard hole saws Carbide Tipped Saw with Precision ground teeth cut smooth burr-free holes with ease