dashap Bi-Metal Hole Saw Kit Carbide Hole Saw Set for Thin Metal and Wood

TOUGH MATERIAL:Bi-metal construction,higher hardness,designed for users who are looking for a convenient way to get clean and fast cuts. – Zinc alloy material,ultimate durability,with anti-corrosion and hard surface. PACKAGE INCLUDES:12PCS bi-metal hole saws,cutting diameter contains 18mm(45/64”),20mm(25/32”),24mm(15/16”),28mm(1-1/8”),30mm(1-3/16”),35mm(1-3/8”),38mm(1-1/2”),45mm(1-25/32”),50mm(1-31/32”),55mm(2-5/32”),65mm(2-9/16”),75mm(2-15/16”),2 hex keys,individual mandrels,individual package for each hole saw. SUPERIOR PERFORMANCE:Unique tooth blade,faster cutting experience. – Eligible for rechargeable drill,portable hand drill,bench drill,eletric drill and etc. For safety purposes,please wear protective goggles and gloves when using our hole saw set. EFFICIENT COOLING:Designed with a extended elliptical slot to remove wood or metal filings easily and efficient cooling. – And you can use a coolant when you drill a hole on the metal,in case overheat. It can be water. WIDELY APPLICATIONS:It’s suitable for applied on wood, aluminum, thin metal and plastic,cutting depth 25mm,for most common purpose,meet your daily needs. – But do not use on concrete, tile and thick metal.