|Threads Per Inch:||20|
Hole saws differ from flat bits in that they only cut around the perimeter of the hole, rather than removing all of the core material within the cut line.
Our hole saws have variable pitch teeth for a smooth and efficient cut. They are made from HSS (High Speed Steel).
Hole saws are used in conjunction with an arbor. An arbor is a drill attachment for the hole saw that serves the dual purpose of creating a pilot hole whilst providing a base for the hole saw, connecting it directly to the drill.
The pilot hole prevents the teeth of the hole saw from “walking” or “wandering” by keeping it centred.
The depth to which a hole saw can cut is limited to the depth of its cylinder construction. Most hole saws are used to cut precise round holes in relatively thin materials.
When purchasing our Holesaws and arbors, you should use the A1 arbor for Holesaws from 14mm to 30mm in diameter. For 32mm and above use the A2 arbor.