Bi-Metal Hole Saws, Set of 9 Metal Hole Saws with Diameters of 16mm, 18mm, 20mm, 22mm, 25mm, 30mm, 32mm, 35mm, and 38mm for Iron, Aluminum, Wood, Drywall, Pipe, Plastic, and Panels, Red

High-quality material structure: HSS hole saw with superior bi-blade construction for higher load capacity; ultra-high toughness, high cost performance, robust performance and quality assurance, not easy to break, hardened grooves, long wear resistance and long service life.
Sharp teeth: The hole drill bit set features impact- and abrasion-resistant teeth. The tooth shape is sharp, vibration is low and can be quickly compensated for when the hole is opened, making operation more stable.
Cutting design: The wood drill bit with a non-constraining design and sharp edges cuts smoothly and easily. And the drill's spring automatically pushes the disc out of the saw immediately after the hole is drilled.
Easy chip removal: The chip removal groove fixed to the side of the hole saw allows the metal drill bit set to quickly discharge chips, improving the speed of removing cylindrical iron filings from the hole and preventing cracking and blockages.
Widely used: The bi-metal wood drill bit set is widely used in plasterboard, steel, aluminum, non-ferrous metals, copper, brass, wood, plastic, PVC, and other materials. It is very suitable for drilling holes in desks, doors, furniture, and cabinets. Suitable for bench drills, electromagnetic drills, rotary drills, impact drills, etc.