The Acekit Bi Metal Variable Plastic Plywood Hole Saw is a reliable and durable tool for any industrial and scientific cutting needs. Thanks to my knowledge gained in practice, I am confident in the versatility of this Hole Saw .It can cut through plastic, plywood and other hard materials with ease. The blade's sharpness is impressive and the variable speed adjustments make cutting a breeze. However, I was disappointed with the size of the tool, which made it challenging to use in tight spaces. Overall, its a great addition to any toolbox..