孔锯 - 使用孔锯的终极指南


In this article, we’ll discuss some tips and uncommon info surrounding the use of hole saws. We’ll also look at how to use hole saws to achieve project success as well as some maintenance tips to ensure that your hole saw lasts longer.

Figure 1- A Set of Hole Saws


You may be wondering why a drill bit can’t do the same job as a hole saw. Well, if drilling sizable holes is your priority, you need a tool that is best suited for the job. A couple of reasons why a hole saw would outperform a drill bit when it comes to drilling a hole includes –

图2 - 孔锯和一组钻头
A Hole Saw and a Set of Drill Bits


Hole saws cut with great precision as they come with pilot bits that allow you to precisely know the size of the hole you want to create or cut. This precision also allows the spot to come out neatly. Plus, with a quality hole saw, you should be able to avoid splintering.


Whiledrill bitslike spade bits and Forstner bits are exclusively for woods, you can use hole saws on a wide range of materials. Besides, there are specific hole saws for different materials – metal hole saws,diamondhole saws, and concrete hole saws.

Hole Sizes

There is a limit to the type of holes drill bits can drill. If you’re looking to drill well-sized holes, drill bits aren’t an option. You’re better off using a spot saw as you can seamlessly create holes with less amount of effort.


Yes, hole saws are powerful tools, but they are only one part of the equation. It would be best if you had a drill that powers your hole saws efficiently. Predominantly, exercises tend to come in three types – hand-held drills, drill presses, and magnetic base drills.

您的工作条件应影响您的钻孔选择。大多数常婚或DIY专家使用手持钻头(有线和无绳),因为它提供了它提供的工作。在你工作的时候,你可以轻松携带它。无论您的钻头选择如何,您都不能忽视一些主题因素,如 -

Figure 3 – A Hand-held Drill in Use

The Material in Question

The concerned material should inform your choice of a drill. Some fabrics require a strong drill power, while others might need less. In this regard, you should always check for the RPM. Some manufacturers usually have this info on their products.

The Diameter and Depth of The Hole

Some drills tend to be more capable of drilling deeper holes and broader diameters. Each exercise comes with information regarding their capability; manufacturers should have this info on their product. Ensure to always lookout for this.

The Power of The Drill



If you’re looking to use the cordless drill, you need to pay attention to the battery voltage. The more powerful the voltage, the more efficient your training will be.

Why Do You Need a Hole Saw’s Pilot Bit?



The pilot bit plays a critical role in ensuring that the bit stays firm using a hole saw. It prevents the hole saw from spinning and wobbling over the objects you want to saw through. Without it, you might accidentally gouge the surface of your item instead of having a neat, round penetration cut. When you sink the pilot bit, it guides the hole saw in anchoring itself, enabling the saw’s stability even before the operation starts.


Hole saws are very efficient tools. However, you may be having a hard time figuring your way around it, and that’s okay. We’ll be looking at thestep-by-step procedureson how you can effectively use a hole saw.

Before we begin, let’s look at the few components of a hole saw. A hole saw consists of a saw blade and an arbor. The arbor acts as the base to the spot saw, and it’s the part that fits into the drill directly. Now that we know this, let’s begin.

Figure 4- A Hole Saw Attached to a Hand-held Drill

3.1 Choose the Right Type of Hole Saw and Hole Saw Arbor

Here, we really can’t’ t overemphasize that the material you’re looking to cut or drill should inform your choice of the hole saw, and hole saw arbor. It would be best to note the hole sizes you intend to cut/drill. If you frequently cut hard materials like metal or concrete, you should select a powerful hole saw to delve into these materials seamlessly. Plus, hard materials like metal also necessitates lubricants as you’ll need to seam to ease friction and have a smooth drilling process.

For detachable arbors, please try to choose a gazebo that fits your hole saw. Arbors come in two types – one for small gaps (14mm – 30mm) and one for large holes (32mm – 210mm). Besides, you want to have an arbor that will fit into either a ½ or 3/8 chuck, depending on your power drill’s specification or requirement.

3.2 Attach the Hole Saw to Drill.

3.2.1 Insert the Arbor into the Power Drill

Proceed to insert the arbor via the back of the hole saw, ensuring that the power drill grips it firmly. A firm grip prevents any wobbly movement when the hole saw is in use.


Now, screw the hole saw into the arbor’s thread, ensuring it fits in tightly. If the drill bit happens to be adjustable, allow it to protrude past the hole saw blades by approximately 3/8 inch and tighten it again via the set screw. The reason for this protrusion is so that you can bore your pilot hole without hassles.

3.2.3 Tighten the Hole Saw Attachment

Yes, we seem to be quite stuck on tightening because it’s better to be safe than sorry. Take the extra step of drawing your hole saw onto the arbor. This additional tightening will prevent it from coming off during a drill operation. Wobbly movements from the spot saw when drilling could damage the material, and we don’t’ t want this.


Here, you’ll fit the end of the arbor into the drill’s chuck. If you’re using a cordless drill, it should, at least, have an 18-volt battery as anything less might not produce the torque you require. An 18-voltage-powered exercise allows you to use your hole saw effectively. After you’ve confirmed this, tighten the chuck and ensure that it holds onto the arbor securely.

3.3 Drill Pilot Hole

继续钻定位孔的中心spot you want to cut out. The pilot hole serves as a guide to ensure that the hole saw is steady and anchored. While drilling, try to maintain a drill bit level. Plus, if your material is free-standing, you should anchor it onto something, so the hole saw doesn’t cause it to spin.

3.4 Take Some Safety Measures



Position the drill bit’s tip into the pilot’s hole. It will keep the spot saw steady and stop it from wobbling. When you begin drilling, the teeth of your hole saw should come in contact with your workpiece evenly. If you’re cutting a rigid material such as metal, endeavor to add a few drops of lubricant to the hole saw’s blade to ease friction.



It is one of the challenging phases in drilling, as most people find it difficult to dislodge a plug (mostly wood) from the hole saw. Well, if you’re using a spot saw that has a plug ejecting feature, you don’t’ t need to worry as the pin will come off quickly. On the other hand, if your hole saw doesn’t’ t have this feature, you can use a slotted screwdriver to dislodge the plug. Using a slotted screwdriver can be somewhat tedious as it requires a considerable amount of workforce.

3.7 Can I use a Hole Saw with a Battery or Cordless Drill?

While corded drills might allow you to outsource electrical voltage to power your training, a cordless drill will enable you to work seamlessly. It is because of its mobility. However, if you have to use a cordless or battery-powered drill, ensure it has a battery voltage of at least 18-voltage power. Anything below the 18-voltage power will cause your routine to underperform, resulting in a poorly-done project.


打了一个新鲜的比在需要较少的努力larging an existing hole. When preparing a new spot, your pivot bit serves as an anchor that allows you to hold your workpiece in place and drill evenly. However, it’s quite different when you’re looking to enlarge an existing hole as there is no place to fix your pivot bit. So, how do we enlarge an existing hole? Let’s find out in the subsequent paragraphs.

Figure 5 – A Large Diameter Hole Saw and A Concrete Plug
A Large Diameter Hole Saw and A Concrete Plug

First off, you mark the existing hole with some horizontal and vertical lines. These lines will represent the center of the existing hole. After you’ve drawn the lines, place a scrap piece of plywood over the existing hole, and transfer the center lines to the plywood. Once the plywood is steady, fix your pilot bit on the intersection of both center lines and drill through the plywood and then onto your workpiece.

Another way to enlarge an existing hole is by fixing two hole saws onto the arbor. To do this effectively, you need a smaller hole saw (one with the same diameter as the existing hole). A more massive hole saw (one that has a similar diameter of the new hole you’re about to drill).

You should fix the smaller hole saw inside the large one. So, when you start drilling, the smaller hole saw will easily slide through the existing hole, and the large outer hole saw will hit a new spot. However, you should note that not all arbors allow two hole saws, endeavor to verify this before attaching two holes onto a single pavilion.

Section 5 How to Drill Tap Holes Through Acrylic or Metal Baths and Basins

Using hole saws to drill through wood materials is easy. The same is true for hard materials such as acrylic and metal baths. But you will need a different method, which we will study.

Advisably, you should always have cutting oil around when drilling metal, as this helps to reduce friction and offer the necessary lubrication. When there is a reduction in conflict, the hole saw will run as it will be cold. Besides, cutting oil keeps the flush metal chips from the kerf. Invariably, this allows the teeth of the saw to slide through your hard material seamlessly.

Alternatively, if you can’t stop at intervals to apply oil while using your hole saws, get a sponge and cut it into the exact shape of your hole saw. Once you’ve done this, soak the sponge with cutting oil and let it absorb evenly. After this, put the sponge inside your hole saw. While you drill the metal, the sponge supplies the oil making your work relatively seamless. Note that you should prepare cast iron without any lubricant as it needs none.

Section 6 How can I Prevent my Hole Saw from becoming Clogged with Dust?



图6 - 钻一个木板的杂物工
A handyman Drilling A Wooden Plank

Section 7 What do I need to Pay Attention to When using a Hole Saw?

There are some specific tips you need to pay attention to when using hole saws. For the sake of precision, we’ll be looking at three separate tips that can come in handy.


想退出你的孔锯切可以blow out the back of your workpiece. If you intend to blast holes through walls or floor joists, a blowout shouldn’t’ t be an issue. However, if you’re sawing through finished surfaces such as doors or slabs, a blowout can pose a serious concern. So, how can you avoid encountering a blowout while sawing through surfaces?

Fortunately, you can avoid a blowout by harnessing two approaches. First, you can place a scrap wood behind your workpiece and saw into it. Secondly, you can saw halfway through from either of the ends and complete it by drilling through the other side of the workpiece.


The best way to avoid burning your wood during adrilling project是确保您有一个有效的润滑剂。用切割油钻削减少摩擦并阻止您的孔锯过热。


Yes, drilling large diameter holes can be quite daunting as it weakens the wrist, drill motor, and hole saw. Instead of trying to hit a large-diameter home at once, you can harness an effortless technique.


Endeavor to drill these holes around the initial 1/8 inch circular hole. Once you finish this, return to the hole saw and complete the sawing. You’ll discover that the 3/16 inch diameter holes will reduce the strain and stress during the drilling process.


通过我们上面讨论的提示,在使用孔锯时,您应该没有问题。您还可以使用本文中共享的购买指南选择您的项目的右孔。但是,如果您需要进一步帮助选择正确的现货锯,请随时reach out to us. We will be glad to guide and provide the necessary support for you.

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