Cut Head
The core cutting component of a hole saw, used for the actual cutting of the workpiece. Depending on the material and diameter of the hole, cutters can be categorized as metal hole saws, woodworking hole drills, or multi-functional replaceable cutters. Cutters are typically detachable for flexible replacement.
Connecting Rod
Used to connect the hole saw to power tools such as electric drills or magnetic drills, transmitting rotational torque. Connecting rods typically feature high rigidity and high coaxiality, and may have a hexagonal shank or threaded interface as needed to adapt to different drilling machines.
Guide Drill
Installed in the center of the hole saw, used to create a positioning hole in the workpiece, ensuring stable and concentric drilling by the cutter head, reducing eccentricity and vibration. Guide drills are usually adjustable in length and used in conjunction with the hole saw cutter head.
Snap Rings, Nuts, and Locking Devices
Used to secure the cutter head and connecting rod, ensuring the cutter head does not loosen during drilling. Some hole saws also use locating pins or anti-loosening devices to increase safety.
Protective Covers and Guards
Some hole saws are equipped with protective covers or depth limit sleeves to control the drilling depth, protect operators, and prevent sawdust or metal shavings from flying.
Auxiliary Accessories
These include gaskets, guide rings, wrenches, etc., used for installing, tightening, and adjusting the position of the cutter head, improving operational convenience and safety.
