71

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? There's no 3rd wire in the cord, nor is there a ground point in the device to connect it to.


55

Drills and impact drivers are similar in that they're both rotating power tools and they have some overlap in usage, but they work differently and have different strengths. Drills apply a constant torque and tend to have good control across a range of speeds and clutch settings. They're good for work that requires care or precision, like drilling a hole or ...


32

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 fine for cutting aluminum, it will push your workpiece away instead of tending to grab onto it. It will generate more heat and be more likely to melt the ...


23

I started using a DeWalt compact impact driver a couple of years ago, and will never go back to a regular drill/driver again, with a few exceptions. The impact driver is superior for most types of screws in hard wood, decking and sheathing. It is also great for self tapping and self drilling screws. It rarely strips the head of the screw as long as you keep ...


21

Put the drill in reverse, firmly grip the chuck (the part you were calling the head) and gently squeeze the trigger up the point that you cannot hold on. If you hear clicking, and it doesn't torque very much, you need to turn the torque setting up to the maximum (the highest number, or the drill setting if it has one). If it still doesn't budge and you're ...


20

They sell what is called an "Offset" drill. Instead of the chuck being inline with the motor, it is turned 90°. They also make drills where the chuck can be turned to get into tight spots. They also make an offset attachment for most drills.


20

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 plug.


19

You can make straight cuts parallel to an existing edge by using a circular saw with a guide. To make the bottom edge of the cut clean, be sure the saw does not cut much more deeply than the thickness of the material. You can also put tape on the cut line, before cutting, to prevent the saw from breaking off small pieces of the material on the top edge of ...


18

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 looks like it may be build up of aluminum on the carbide tooth. It definitely doesn't look like carbide. If it is Aluminum it should be easy to pull off with a ...


16

Believe it or not, they do make such things. For example the Greenlee AC Adaptor for 18V Cordless Tools. I have not heard of a "system" like that though. I suspect that's related to the fact that I've never met a pro who used or even wanted one. When battery-powered tools finally became usable, we all pledged our firstborns to whatever god made that ...


16

It has to do with how far back the blade goes on the down (non cutting) stroke. It's usually called the "Pendulum Stroke adjustment." The idea being that it will move the blade back, out of the way of the material on the down stroke. It reduces the load on the saw when cutting thick materials, at the cost of a bit more splintering. Use a setting of 0 ...


15

A typical spindle sander rotates at between 100 and 2,000 RPM, where a router is much faster 8,000 to 35,000 RPM. So I would say this is probably not the best idea, and could lead to damage to the equipment, injury, and death.


14

When the drill is used as a screwdriver, the numbers indicate the torque breaking point. Higher numbers mean more torque. By breaking point, I mean the point at which torque is no longer applied. This feature is useful because you can limit the amount of torque that is applied to prevent screws, or the materials they are inserted in, from being stripped. ...


14

It depends on what you're cutting, why you're cutting it, and what type of cuts you're making. Long Straight Cuts When it comes to long straight cuts, a table saw is the best in the business. Set the fence, turn it on, and it'll cut the same width pieces forever. With a band saw (or most other saws), you'll be looking at using some type of jig for long ...


13

There is a big difference between being tied to an expensive, proprietary battery pack and being tied to a 120 VAC line. When my first battery pack for a tool dies, I dissect it and attach wires through a suitable strain-relief. I then connect the ends to an Anderson Powerpole connector, which I can then plug into a more substantial battery. (If you do so, ...


13

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 lighter than an electric drill which is very useful in many applications such as carving, etching and working with small work pieces. Dremels can be used with non-...


13

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 similar systems) can bite you, and correspondingly, all saws can be used safely. So, my advice is to learn from experts how to use your chosen saw. Don't slip ...


13

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 the extension cord; the longer the cord, the greater the drop. However, a heavier gauge cord will have less voltage drop than a lighter gauge cord. (Voltage ...


12

I have a hand-tighten chuck on my cordless (a Makita) and I've never had any issues. However most of my bits are spin-resistant (i.e. they have chamfers). I've used it with a step bit to drill 7/8" holes through stainless steel. If that drill has a user-replaceable chuck, you could always just start with the stock one and upgrade if needed...


11

A few things I've done/do with my rotary tool that can't be done with a oscillating tool: Etching numbers/letters with a diamond point (in very hard materials; such as marking serial number/ownership on a bicycle frame or tool). Polishing; many rotary attachments are made for polishing fine items. Routing. There are several router bit setups for roto-zips ...


11

Try this little trick. Cut two rectangles from your plywood an inch or two larger than what you want your finished pieces to be. Be sure one face of these rectangles are a straight factory edge. Now stack the two pieces together and clamp them with the factory edges one on top of the other, nice and flush. Scribe a perfectly square line using a ...


11

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 wide spread. Because you didn't provide the model it isn't possible to give you a more specific reason why it has failed. My opinion is that when you were ...


10

I've only used an oscillating tool a few times (it was someone else's ... can't remember the maker, but I don't think it was Fein), and I do own a rotary cutter (RotoZip), and a few Dremel rotary tools, but they're smaller models for hobby work, not construction. The RotoZip is closer in spec to the Dremel Tri Multi-Tool from what I can find (it's on their ...


10

If you want to rip it (cut it on its long dimension), the only way to be sure it is straight is to use a table saw: If you want to cross cut it (on its short dimension), you can do that with a miter saw if the piece is not too wide: If you are confident in your abilities and it does not need to be exactly straight, you can make a line with a chalk line and ...


10

Don't Stall Electric Motors. Ever. Stalled motor = no back EMF = High Current. It burns the windings out. I'd think the technology in more expensive drills with brushless motors would sense a stall condition and go into shutdown, but yours seems to be willing to sacrifice its life, cooking the insulation off the windings and attempting to burn out the ...


9

A 60 tooth is a fine blade for semi-smooth finish cuts. Cuts on flooring are always at the wall ends, so even a 40 is good for that since the baseboard trim goes over the cut. You should be leaving a 1/4 inch expansion gap at he ends anyway, so they won't show. The DeWalt 12" blade is a good long lasting blade. It has good balance, heat dissipation and takes ...


9

The drill you refer to has a single-ring chuck that is operated with one arm. Its surface is large enough so that you can have reliable grip and apply enough torque to the chuck to tighten/loosen it in all reasonable situations. I've used a similar drill of another brand with the same chuck design - the chuck operation and reliability are just excellent. ...


9

First item in sharpening things. When you're sharpening chisels and knives, you don't remove that much metal that you require powered implements. Manual movement on broad, flat stones is sufficient. Second item in sharpening things. Using a powered grinding implement will destroy any edged tool by heat buildup. A very light touch is needed, once you've ...


9

The most likely solution is to create a template and use a router with a bit that follows the template. The router would also be used for easing over any sharp edges. photo credit, sample image, not a product recommendation


9

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 pocket in the middle will be the periphery size of the small item that you want to sand. Stick a piece of double stick tape into the cavity bottom to hold your ...


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