As implied by the name, a hole saw is made to cut a circular hole of much wider gauge through a workpiece than standard drill bits can create on their own. As with most power tool accessories, the key to choosing a high-end, well-made hole cutter is to look out for a combination of robust construction, quality materials and accurate, tidy machining. In addition to these basic glass cutting tools, Dortech Direct Ltd also offers specialized glass cutting tools, such as circle cutters, glass scoring tools, and glass pliers. These tools are designed to provide specific cutting solutions for unique cutting applications and can be used in conjunction with other glass cutting tools to create precise and efficient cutting solutions.

Be aware that going in at a slightly off-centre angle - or hitting a nail while drilling - can cause very sudden and violent binding/jamming of the drill when using a hole saw Consider using an accessory such as a dust cowl to cover the hole saw bit while in use, and prevent excessive spillage of debris when boring out large holes Where this isn’t possible, a very handy optional accessory would be something like a hole saw re-work adapter (pictured on the right), which allows the user to attach two different diameters of hole saw bits simultaneouslyThese simple add-ons also help to protect the drill itself by stopping dust from directly entering the motor, especially when working overhead Hole saw cutters for sheet metals are generally manufactured to be extra robust, and can withstand the much higher temperatures generated by cutting through a range of common metals such as (stainless) steel. If you want to drill a hole clean through a workpiece, be aware that going directly from one side through to the other with a hole saw can create a lot of ‘blowout’ (material tearing) on the reverse side

In many cases, it’s possible to do this via the handy ‘speed slots’ that many brands cut into the side walls of their hole cutters for this very reasonGenerally speaking, the teeth on most masonry hole saws (sometimes referred to as ‘core drill bits’) will be more widely spaced than timber versions, and often diamond-tipped teeth for extra hardness and cutting power.