Description of 4-1/2
【PACKAGE】This Carbide Grit hole saw kit includes 1-3/8, 4-1/2 inches (35,114mm) SAW BLADE, 1 MANDREL, 1 piece of 3.5" (89mm) carbide-tipped drill bits, and 1 magnetic bit holder, 6 Extra CrV Screwdriver Bits. 【UNIVERSAL APPLICATION】This Carbide Grit hole saw is your ideal choice for brick, concrete block, fiber cement siding, backer board, stucco & old plaster. 【EASIER TO CUT】Carbide grit hole saw cuts through a wide range of abrasive materials. 【Hole saw depth】1-1/2Inch Depth(38mm). 【100% Satisfaction Guarantee】We are dedicated to providing every customer with satisfying products and services. If you are not satisfied with our product, we will provide a free return or refund for you.