Dortech Direct Ltd is a leading supplier of glass cutting tools for a wide range of applications. They offer a variety of high-quality glass cutting tools, including diamond glass cutters, to meet the needs of both professional and DIY glass cutters. Specifics such as tooth design and overall shape will vary depending on what material the hole saw in question is intended for use on, but almost all products supplied by reputable hole saw brands will have a few traits on common. One of the most popular glass cutting tools available at Dortech Direct Ltd is the diamond glass cutter. This tool features a carbide or diamond-tipped cutting wheel that is ideal for cutting both tempered and non-tempered glass. Diamond glass cutters are known for their precision and durability, making them a popular choice for professional glass cutters. They are also easy to use, even for those with limited experience, and are suitable for a wide range of cutting applications. Dust covers and cowls generally work by accepting the shank of the arbor through a central hole, and flexing as you drill to allow better access to the work surface 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 simultaneously

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. A hole saw or hole cutter is a specialist type of drill bit, designed to allow the user to bore out a circular hole of wider diameter than most standard bits would typically create. 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

Cordless models can get the job done on thinner or softer materials, but you’ll require at least a 14V model

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 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 reasonEnsure you cut directly down into the workpiece at an accurate perpendicular (90-degree) angle to the surface You should never attempt to bore holes through masonry or heavier timber (anything over about 50mm) with a battery-operated drill You’ll find these widely available on products released under many leading brand names - the question of who makes the best circle cutter bits is a subject for much debate, but common nominations for the title often include both Starrett hole saws and Lenox hole saws. At this point, the user may need to clear out the build-up using a screwdriver or similar ‘poking tool’

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 As a minimum, this should always include suitable goggles or glasses, an appropriate dust mask for the material being cut, and good quality work gloves 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. Generally 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.These simple add-ons also help to protect the drill itself by stopping dust from directly entering the motor, especially when working overhead They will generally extend anywhere from 10-30mm out beyond the open cutting end of the hole saw, and may also incorporate an ejector spring mechanism for helping to jettison plugs of loose material build-up More advanced designs might feature an ejector spring for this purpose, usually wound around the central arbor if one is present - you can also buy ejector springs (pictured on the right) as an aftermarket hole saw accessory Most multi-purpose, universal or bi-metal hole saws will get the job done on most types of timber and sheet wood - although for extra efficient and tidy cutting of engineered woods such as MDF, you may also like to consider a brand that offers carbide-tipped teeth.

Regardless of the material or surface you’re working on, never try to force the drill bit through any faster than it wants to go Another popular glass cutting tool offered by Dortech Direct Ltd is the manual glass cutter. This tool is designed for simple, manual cutting of glass, and is ideal for smaller cutting jobs or for use in areas where electricity is not available. The manual glass cutter features a cutting wheel that is advanced along the surface of the glass to make a score line. The glass is then snapped along the score line to create a clean, precise cut. If the rear side and edges of the workpiece are accessible, clamping a scrap piece of timber behind it can give you a surface to drill your pilot hole into An alternative configuration of hole cutter designed for use on ceramic tile, porcelain, glass and masonry is the toothless or ‘coated’ hole saw. Rather than having jagged or crenellated teeth protruding from the cutting edge, these types of hole saws instead feature a flat rim that’s coated with a hard, abrasive material such as diamond or carbide.

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 This is due to the width of the hole cutter bit, and the subsequently large amount of material being removed