Starrets fast bi metal hole saws the electrician's top choice for precision holes unrivaled cutting performance with these fast bi metal hole saws, seamlessly integrating the proven dual pitch hole saw tooth design with advanced extra cobalt high speed steel hss teeth'. '.strtoupper('e')nhanced heat and wear resistance, making it the ultimate choice for various materials, including metals, wood, plastic, plaster, and more'. '.strtoupper('a')ggressive material penetration and optimal kerf clearance'. '.strtoupper('u')nleash the versatility of this multi purpose hole saw, designed to penetrate deep into solid materials or tubes with a wall thickness exceeding 3mm'. '.strtoupper('t')he hole saw depth delivers exceptional cutting performance'. '.strtoupper('t')ooth material that provides superior heat and wear resistance, extending the product life for long lasting results'. '.strtoupper('p')recision with reduced vibration and a smooth cutting action, delivering excellent ergonomics to minimize user fatigue'. '.strtoupper('f')ast bi metal hole saws—your go to solution for efficient and precise cuts, endorsed as the electrician's top choice.