16 pcs hole saw kit

While the exact sizes and types can vary by manufacturer, a 16-piece kit usually provides a good range of common hole saw diameters along with the necessary accessories to use them. Here’s a typical breakdown:

1. Hole Saws (12-14 pieces): These are the actual cylindrical cutting blades. A 16-piece set usually includes around 12 to 14 different diameters to cover a wide range of applications. Common sizes often found in a kit like this (in inches or millimeters) might be:
   • Inches: 3/4″, 7/8″, 1-1/8″, 1-1/4″, 1-1/2″, 1-3/4″, 2″, 2-1/2″, 3″, 3-1/2″, 4″, 5″
   • Millimeters: 19mm, 22mm, 29mm, 32mm, 38mm, 44mm, 51mm, 64mm, 76mm, 89mm, 102mm, 127mm
   • The sizes chosen typically address common needs for plumbing, electrical work, and general construction (e.g., holes for pipes, conduits, door handles, light fixtures, speakers).
2. Arbors/Mandrels (2 pieces): These are the shafts that connect the hole saw to your drill. A kit will typically include at least two arbors:
   • One for smaller hole saws (e.g., with a 1/4″ pilot drill and 3/8″ shank).
   • One for larger hole saws (e.g., with a 3/8″ pilot drill and 7/16″ shank, or a quick-change system).
   • Arbors often feature a pilot drill bit in the center, which guides the hole saw and prevents it from wandering while you start the cut.
3. Hex Key (1 piece): Used to tighten or loosen the set screw that secures the pilot drill bit in the arbor.
4. Driver Plate (1 piece): Some sets include a driver plate or adapter that helps to secure the hole saw to the arbor, preventing it from slipping during use.
5. Storage Case: A durable plastic blow-molded case is almost always included to keep all the components organized and protected.