Auniwaig 1.97inch Bi-Metal Hole Saw Blade M42 HSS Hole Saw Bi-Metal Drilling Cutter Adjustable Hole Size Opener Drill Bit Corn Hole Drilling Cutter for Metal Steel Aluminium Pipe Wood Red 2Pcs - CU3201H2401HF

• ★MODEL: Bimetal Hole Opener Material: M42 high speed steel Treatment: Electrostatic spraying Hole depth: 25mm/0.98inch Hole diameter: 50mm/1.97inch ★UNIQUE HOLE SAW ARBOR: hole saw is equipped with a unique screws mandrel, which has better stabilty and safety compare to the simple spring arbor. ★SMOOTH AND QUCIK PROFESSIONAL CUTTING : Variable tooth pitch and non binding clean edge design guarantee a fast and clean cutting through cast iron panel, aluminum panel, plastic. ★HOW TO CUTTING SUCCESSFULLY:Holding the drill straight and at a slow speed to touch the cutting surface, take your time and let the saw do the cutting, then you will get a smooth and clean circle cuts. ★PACKAGE INCLUDE: 2*Bi-metal Hole Saw Blade, Perfect for Corn Hole Board Drilling and other home projects, such as recessed lights, corn hole/bean bag boards, speakers, air ducts and more