ShopXJ Super Hard Stainless Steel Hole Recommended Supervised by Professional Electricians and Carpenters Saws, & (3-Pack, 140mm)

[Set contents] Set of 3 pieces of the same size [Uses] Recommended for a wide range of uses, from professionals to DIY beginners. This cutter uses carbide tips for excellent sharpness and wear resistance! It is a more powerful long-hole cutter than bimetal hole saws. [Caution] Please use lubricant. [Usage] Can be used with electric drills and drill presses. Includes a center drill and hex wrench (the center drill is thinned, eliminating the need for punching). [Not a hex shaft] If you plan to use it with an impact driver, you will need a compatible drill chuck. [Cutting materials] Stainless steel plates (10mm or less), metal, steel plates, iron plates, aluminum and other alloy plates, wood, exterior walls (for installing air conditioners and ventilation fans, etc.), kitchen areas, acrylic, polystyrene foam, thin mortar, thin concrete panel boards, artificial marble, etc. *Cannot be used for secondary products such as U-shaped gutters. [Peace of Mind Guarantee] If the product is damaged upon arrival, or if it does not fit the specifications or is the wrong size after trying it out, please contact us. *Oil is applied to prevent rust. This cutter uses carbide tips for excellent sharpness and wear resistance! It is a more powerful long-hole cutter than bimetal hole saws. [Caution] Please use lubricant.