discount Hole Saws Product Description Operating on a similar premise to single tooth hole cutters and TCT hole saws, these hole cutters feature multiple tungsten carbide tipped (TCT) teeth and can be used on a variety of materials, ranging from ceramic tiles to timber and fibreglass. Salient Features & Advantages 1. Fast cuts in light pipe, angle iron, tubing, conduit and channels. 2. No sparks and virtually burr free, It can precisely cut very high quality and smooth holes. 3. Carbide tipped blade lasts longer than abrasive and cuts cleanly and accurately. 4. Quick vice for convenience锛宒esigned with precision ground, sharp tough gears, and stepped pilot drill bit. 6. Boya TCT hole saw extremely durability for any tough material, design for drilling in stainless steel, high alloy steel, iron, aluminum, plastic, and so on,Tungsten carbide teeth provide a long life use. 7. Precisely Machined and Hardened Pilot pins for exactly locating Punch mark. 8. Special sizes and Inch Diameter Cutters are Available on Order.discount Hole Saws website:http://www.boyatools.com/hole-saws/