Starrett 20 mm HSS Bi-Metal Hole Saw Drill Bit for Metal, Mild Steel Sheet, Stainless Steel, 38 mm Cut Depth FCH2532-G

The Starrett FCH2532-G bi-metal hole saw drill bit is a precision engineering tool for creating clean, accurate holes in a range of metallic materials including mild steel sheets and stainless steel. With its 20 mm diameter and robust HSS (high speed steel) cutting edge, the drill bit delivers reliable cutting performance required in industrial, construction, and maintenance operations.

This hole saw features a tough bonded construction, where a hardened HSS cutting edge (6 teeth per inch, alternate set) is welded to a resilient alloy steel body. The bi-metal design significantly reduces the risk of shattering, extending tool life even under demanding work conditions. It is engineered for efficiency and resilience, providing consistent performance across a variety of materials such as cast iron, tool steel, brass, bronze, aluminium, plastics, and wood.

With a 38 mm maximum cut depth, this hole saw is ideal for tackling tasks that demand extended bore depth, making it suitable for heavy-duty industrial applications, plant maintenance, and metalworking shops. The tool operates optimally with a suitable arbor and pilot drill (a 6.5 mm arbor for diameters 14 - 30 mm or a 9.5 mm arbor for diameters 32 - 152 mm). Auxiliary components like arbors, pilot drills, and ejector springs can further improve workflow by aiding core removal during repetitive tasks.

The alternate set teeth design, with 6 teeth per inch, allows for fast material removal while maintaining a clean cut, minimizing burrs and deformation of the cut edge. The hole saw's resilient alloy backing increases shock resistance, making it a reliable choice for technicians and engineers in fabrication, panel building, electrical, plumbing, and manufacturing industries.

Typical industrial and workshop applications include panel fabrication, conduit and pipe installation, HVAC ducting, general construction, machinery installation, and retrofitting tasks requiring accurate circular cuts in sheet metals and steel plates. The robust Starrett bi-metal construction makes the FCH2532-G a go-to solution for professionals seeking precise results and reduced downtime due to tool wear.

This product is best suited for use with compatible arbors and can be further customized with Starrett's pilot drills and ejector springs for enhanced functionality. Choose Starrett hole saws for reliable drilling solutions in metalworking and industrial environments.

For more high-performance Drill Bits and industrial cutting solutions, browse the Starrett product range on EnvMart.