71 votes

Does a 2100W angle grinder need an earth pin?

Your grinder is a Class-II Double Insulated appliance and therefore does not require a ground/earth connection. But even if you did decide to fit a 3-pin plug, what would you connect the 3rd pin to?...
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  • 5,134
32 votes
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Is this saw blade faulty?

The filling is melted aluminum that galled/melted and filled the gullet and is covering one of the Tungsten Carbide teeth. You can pull it off with a pliers. The negative rake angle of the blade is ...
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25 votes

How do I get over my fear of using power tools?

Check with your park districts and your community colleges for information on their wood working classes. Many offer classes on hand and power tools. You could also check with some local carpenters ...
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  • 55.3k
23 votes
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Why does my old table saw power switch cut both hot and neutral?

The technique is called double-switching. According to this article, on AC equipment the technique is used to avoid dangerous conditions when hot and neutral are reversed, as often happens with ...
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  • 501
20 votes

Does a 2100W angle grinder need an earth pin?

It is double insulated. Your prior one wasn't so its case had to be grounded. Look for the square in the square icon on the name plate of the device: You will not be any safer if you replace the ...
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  • 1,350
18 votes

Is this saw blade faulty?

Yes the J shape is supposed to be there for expansion. If you look at a Diablo blade it has the J relief cuts at the edges and also d-shaped relief cuts within the body of the blade. The large tooth ...
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  • 6,106
18 votes
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Is a reciprocating saw the right tool to saw 2cm/0.8" hardened steel?

For cutting locks, nothing beats an angle grinder. Good locks are all made with hardened steel that should be as hard as any metal cutting blade for a saw. The reciprocating saw will be able to make ...
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  • 26.6k
18 votes

How do I get over my fear of using power tools?

Fear will lessen once you are familiar with the tools operation. To build familiarity… Read the instructions before using a new tool. Watch videos online to familiarise yourself with how the tool ...
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  • 2,839
17 votes

Best DIY all-rounder cutting tool for straight edges? Multi tool?

The problem with 'All-rounder' tools is that they are rarely actually very good at anything. Sure they'll let you cut a wavy line in tile, but how often will you be doing this? My advice would be to ...
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  • 2,555
14 votes
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What can a Dremel tool do that a drill cannot?

An ordinary electric drill does not have the speed of the Dremel (30,000 rpm) which is the key to getting the best results from many of the accessories. Also, the Dremel tool is much smaller and ...
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  • 1,324
14 votes

Why does my old table saw power switch cut both hot and neutral?

Probable reason: they made ONE saw assembly and used a motor that could be configured as 110 or 220. For 220 you would break both lines, for 110 you don't need to, but there is nothing saying you can'...
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  • 14.4k
13 votes

What's the safest type of power saw?

While I appreciate this isn't an answer to the question, I'd like to point out that power tool safety is as much a state of mind as anything. All saws (with the possible exception of the sawstop and ...
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13 votes
Accepted

okay to use fatter/longer extension cord than spec'd for power tools?

The issue here is voltage drop in the circuit supplying the saw. The saw's motor has an optimal voltage range, and will not run well if the voltage is too low. The voltage drops over the length of ...
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11 votes
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What could cause a battery hedge trimmer to have white smoke come out of it?

Your hedge trimmer sounds like it has died or is in the process of dying. A quick google search confirms that this can occur with Black & Decker hedge trimmers, although it does not appear to be ...
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  • 940
11 votes
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Does Makita multi-tool DTM51 have a real Starlock mount

No Your multitool does not have a Starlock mount. But some Starlock blades are compatible nonetheless. Starlock Starlock has three types of blades: Starlock regular, Starlock Plus, and Starlock Max. ...
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  • 230
9 votes

How can I safely sand a small, thin item with a belt/disc sander?

Make a piece of board that looks like the following with some small 0.1 to 0.2 inch thick strips glued to it. This board would be long enough that you can hold it safely near the belt sander. The ...
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  • 61.6k
9 votes

How NOT to use a power drill. What are common mistakes that should be avoided?

Some other helpful hints (not from Heloise) 0) ALWAYS wear gloves and eye protection. (Note: if you're using one hand to hold down the material being drilled, a glove can reduce injury if the drill ...
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9 votes

Best DIY all-rounder cutting tool for straight edges? Multi tool?

I do not know what "multi-tool" you are referring to. Best DIY all-rounder cutting tool for straight edges? It depends on what you are cutting and how long the cut is. There is not one tool ...
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  • 13.3k
9 votes
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What should I do if I overheated my drill motor and made it smoke?

This has happened to me before and in general the tool continues to work mostly fine. I suppose there might be a drop in power output but I’ve never really noticed it. I realized that slightly more ...
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  • 1,661
8 votes

Can i use larger/smaller circular saw blades on my circular / plunge / table / miter saw?

Especially within the same size class of saws (eg. 8.5", 10", 12") you will find that machines sometimes have blades which differ in size up to 5 mm / 1/5" (12": 300–305 mm, 10": 250–254 mm). For the ...
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  • 231
8 votes

How do I get over my fear of using power tools?

Get a lot of practice. To start, go buy (or dumpster-dive) some cheap plywood. Then cut it into little pieces and throw them away. Just burn the wood as practice cuts - don't try to "make" ...
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  • 1,272
7 votes
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Should I be concerned about wearing out the clutch when driving screws with my drill/driver?

This isn't something I would worry about at all. If you are a typically householder you don't use your driver 8 hours a day 5 days a week year after year after year. If you do, you should be buying a ...
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7 votes

Does the number of links of a chainsaw chain affect the sprocket?

Gauge is the thickness of the drive tangs on the saw chain. Chain gauge must match the groove width on the bar. The only effect chain gauge will have on standard spur sprockets is the contact area it ...
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7 votes
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Why did my angle grinder die?

The Intermittent "sputtering" is sign of a loss of power going into the motor windings. there is pretty much only two ways this happens, A: there is a short somewhere (plug, cable or switch) or B: the ...
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  • 3,284
7 votes

How can I safely sand a small, thin item with a belt/disc sander?

As a woman who sharpens knives for a hobby, I always keep a pair of "fillet gloves" around. These are the gloves a lot of fishermen use when filleting their catch. The gloves are made with (to quote ...
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7 votes
Accepted

SDS drills with advertised chuck sizes

Looking at the Milwaukee web site the chuck capacity refers to the largest solid bit (hole diameter) the drill is capable of drilling. They are referring to using a solid bit not a hole saw. If you ...
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  • 10.9k
7 votes

What do the diagnostic flash codes of Milwaukee tool battery packs mean?

Since there is no official documentation, we need to do a bit of reverse engineering. So it appears to me (from similarities with flash codes from cars in the 1990's) that the number of flashes will ...
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  • 223
7 votes

Alternatives to circular saw for cutting 2x6 wood?

Buy a handsaw like this 13-20 dollars. Will cut straight not fast and it will strengthen and tone your arm muscles.
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  • 4,122
7 votes
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How to Lubricate a Hammer/Rotary Drill

Here's the relevant bit, which includes some liability tone: Your tool was properly lubricated before leaving the factory. In from two to six months, depending upon use, take or send your tool to ...
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  • 106k
7 votes

Removing router bit that is stuck with damaged shaft

While the other answer is correct in normal conditions - that is the purpose of the pin. I would use a bar that fits into the hole in that shaft and a properly fitting wrench as if it has been ...
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