Reduced Friction: The walls of the hole saw cylinder are relatively thin, cutting through material with less friction than solid drill bits. Less power is needed, so less strain is placed on your drill and cutting time is drastically reduced. Expect to save on energy, battery life, and time. Hole saws pose potential danger, so knowing when and how to use them is key. Whether you’re cutting through wood or dealing with ceramic, you’ll start by properly attaching the hole saw to the drill. Diamond-Edged: Showcasing a conspicuous absence of teeth, such hole saws are either coated or infused with diamonds. The hardness and durability is exceptional, so high heat and constant resistance are no obstacle. You’ll generally use them to drill through ceramic tiles. Though heat resistant, you should periodically cool them in water. The hole saw is a large diameter, hollow drill bit with a keen cutting blade along the outer edge. Attach one to a power drill and it rotates at high speed, cutting precise holes into anything from bathroom basins to external walls. The depth of cut is limited by the hole saw’s cup-like shape, but a variety of bit types are available to work around varying requirements. Metal Cylinder That covers the basics, but what if you need to drill holes deeper than your hole saw allows or widen an existing hole?

Hole Saw DIY guide to the perfect drilling technique The Hole Saw DIY guide to the perfect drilling technique

Continue Cutting: Once the wood has been cleared, realign your saw and continue until you reach the required depth or make a through-hole. Leaves the Core Intact: A hole saw works without needing to cut up the core of your workpiece, a notable advantage over twist drills or spade drills, especially when dealing with larger holes. Versatility: A hole saw achieves a greater variation of hole sizes than rival tools – they are particularly valued for cutting large diameter holes.Keep it Steady: You’ll want to start slow, holding the grill tightly and squeezing the trigger lightly. Only a moderate amount of pressure is needed to push the saw through – instead of forcing it, focus on keeping the saw level. Variable Pitch Bi-Metallic: Bi-metal construction boosts safety by eliminating the chance of shattering, so consider these a good step-up for dealing with slightly tougher materials or working for longer periods. Many boast hardened teeth of high speed steel for faster cutting, and variability lets you cut at different speeds according to your chosen material. Best suited to hardwood, plywood, non-laminated plastic, plasterboard, and non-ferrous metals (such as aluminium, zinc, and copper). Remove Slug: The slug is just an easy term for the waste material that collects in your hole saw. If you have an ejector spring arbor, it should pop right out – otherwise, dig it out manually. Eye Protection and Mouth Guard: To prevent dust or splinters getting in your eyes or being inhaled.

Tools to Make Holes in Wood of All Sizes (2023 Guide) The Best Tools to Make Holes in Wood of All Sizes (2023 Guide)

Use Your Chisel: Grab a chisel and start cutting out as much wood as you can. This should let you go a little deeper. Tungsten Carbide Tipped: Tungsten carbide tipped teeth deliver fast cutting action and outstanding durability, ideal for those who expect to use their hole saw frequently and for extended periods. Often used as the construction industry’s multi-purpose option, they cut through all woods, plastics, tiles, and metals. Perhaps not quite necessary for personal use, but undeniably nice to have. As you’re browsing, you might consider seeking an arbor with a spring placed over the drill bit. These are known as ejector springs – they contract as you drill and then eject the slug (the cut segment) after the hole has been made. If your hole saw should become dulled, the relatively low cost of replacing the blade should be enough to dissuade you from sharpening. If you’re set on sharpening, you can use a hand file on each individual tooth, though a hand-held electric grinder will slightly cut down on elbow grease. A bench grinder also does the job, but extensive time and concentration is required – honestly, it’s largely advantageous to replace instead of re-sharpen. Storing

Small Arbors: Have a shank size of 1/3-inch (8.75mm) and are used alongside hole saws with diameters between 14mm – 30mm (1/2 – 1 inch).

Hole Saws - Bunnings Australia Hole Saws - Bunnings Australia

The chance of injury falls significantly when you don the right safety wear and employ the proper safety equipment. Hole saws don’t require much, but what they do require is vital.

Pitch refers to the distance between the point of two teeth (serrated) or the middle of two teeth’s gullets (gulleted/square). A variable pitch hole saw varies that distance, while a constant pitch hole saw maintains the same distance.

Single Bi Metal Holesaws | Hole Saws | Screwfix

Deep Cut Variable Pitch Bi-Metallic: Not named through coincidence, the deep cut variable pitch bi-metallic hole saw drill will boast a cut depth up to 42.5mm. Otherwise, it retains the characteristics and benefits of the standard bi-metallic. Understand TPI as a measure of tooth frequency along the blade. For example, 18 TPI means 18 teeth per inch, so that tooth frequency is higher than that of a 16 TPI hole saw. TPI numbers vary, but they stay within the general ballpark of 20 to 2. Blades with a lower TPI cut faster, but they do tend to tear at fibres to produce a more ragged edge. Here’s where things get interesting. The metal cylinder of each hole saw culminates with an edge that uses either serrated saw teeth, gulleted/square teeth, or ultra-hard embedded materials to cut through your workpiece.

Knowing how to use your hole saw is one thing, but don’t forgo proper care. Here’s the low-down on cleaning, sharpening, and storing. Cleaning All in all, you’ll find yourself fluent in hole saw by the time you finish reading this post. What is a Hole Saw? Serrated Saw Teeth: Typically set at a 60° angle to allow a penetrating bite into the material being cut, saw teeth are far and away the most common cutting edge. Use saw tooth hole saws for wood, plaster, softer metals, and plastic.