With the Bahco 3830-51-VIP hole saw, you cut clean, accurate 51 mm circular holes through wood, plastic, and various metals with complete confidence. The robust Sandflex bi-metal construction features cobalt-alloyed teeth that maintain their sharp cutting edge through tough installation tasks in electrical work, plumbing, and metalworking. Its variable 4/6 tpi tooth configuration ensures rapid chip removal and smooth cuts up to a cutting depth of 38 mm. Thanks to the practical side knockout slots, you can eject cut cores in seconds and keep your workflow fast and productive.