0
Construction Tools
This category includes the humble hammer and pliers as well as the more modern equivalents such as nail guns, power saws, and precision laser levels. Tools that a professional construction worker as well as the weekend handy man has are discussed in this category.
2,173 Questions
The hammer is a tool used for driving nails or breaking objects by applying force to the striking surface. It is typically made of wood, metal, or plastic and has a handle for grip and a head for striking.
3mm drill bit equals how many inches?
3mm ~= .11815" closest equivalent drill bit-- 7/64" (slightly undersized @ .109")
When you use it to pull out a nail, the curved part becomes the fulcrum and the part on the back that you use to pull out the nail and the end you would use to pound the nail in are the two ends of the lever.
Where were wheelbarrows invented?
They can be traced back to ancient China. See the related link for more information.
There is archeological evidence that the ancient Greeks had wheelbarrows about 2400 years ago in 407 B.C. The Chinese are known to have wheelbarrows about 600 years later, around 210 A.D.
What is the difference between rotary drill and hammer drill?
The hammer drill vibrates in and out very fast to make masonry drilling much easier.
Rotary hammers are drills with a piston on the inside which is operated by the motor and gears. When the motor turns, it moves a gear, which then moves a rod. The rod hits a hammer mechanism which transfers the strike force into the rotary hammer bit. All of this happens very rapidly. Because there is a piston being struck, the force of the blow against the bit is much harder than that of a hammer drill.
Hammer drills have a motor that turns a splined gear type mechanism inside the tool. These splined gears are meshed together and hit against each other creating a vibrating action that is transferred to the drill chuck and bit. The hammering is rapid, but the force is only a fraction of that delivered by a rotary hammer.
The primary use for the rotary hammer is to drill holes (from 1/4" to 2" in diameter) in hard concrete using a solid bit. It's also used for light chipping.
The primary use for the hammer drill is to drill holes (from 3/16" to 7/8" in diameter) in masonry or brick. It's also used as a heavy-duty drill motor for standard drilling.
Typically, a hammer drill has a chuck and uses bits that have straight shanks. Most rotary hammers use bits that have either slots and grooves in the shank (SDS) or spline shanks. Also becoming popular is a slotted shank bit called the "SDS-Max" which is for larger hammers.
There is a major difference between a standard hammer drill and a rotary hammer drill. A standard hammer-drill uses 2 grooved plates that rotate opposite of each other; when they slip and the grooves connect, a bang is heard, "hammering" the chuck in and out, allowing a carbide bit to go through masonry materials. This method generates quite a bit of noise and often requires hearing protection. A rotary hammer is extremely more efficient than a regular hammer drill, because it drives a piston that compresses an air pocket, that, in turn, pounds the chuck with measurable impact energy. There really is no question which is better and faster. Rotary hammer drills do the same job in far less time, with less noise and with less effort. For many applications, like drilling into tough materials like aged concrete, a rotary hammer is the only tool to use.
Can you ever drill through micro lam?
Drilling through structural beams is strictly limited. You must have engineers approval.
Hammers are used to pound nails into an object, pull nails out of objects, and for other uses when hitting or pounding is necessary.
There are dozens of types of hammers with many different purposes. The uneducated may think they are only for pounding nails, but there are many other uses.
A wheelbarrow is a small hand-propelled vehicle, usually with just one wheel, designed to be pushed and guided by a single person using two handles to the rear or a sail may be used to guide the ancient wheelbarrow by wind.
It is designed to distribute the weight of its load between the wheel and the operator so enabling the convenient carriage of heavier and bulkier loads than would be possible were the weight carried entirely by the operator. As such it is a second-class lever. Traditional Chinese wheelbarrows, however, had a central wheel supporting the whole load. Use of wheelbarrows is common in theconstruction industry and in gardening. Typical capacity is approximately 170 litres (6 cubic feet) of material.
A two-wheel type is more stable on level ground, while the almost universal one-wheel type has better maneuverability in small spaces, on planks or when tilted ground would throw the load off balance. The use of one wheel also permits greater control of the deposition of the load on emptying.
From: http://en.wikipedia.org/wiki/Wheelbarrow
What is the life span of a 1968 Craftsman electric power saw?
if you can still find a repair shop that can clean and change out the brushes, etc, it should last a lifetime.
hope this helps!
ANS 2 - You can find assorted brushes and bearings at shops that re-build starters and alternators, and it's a fairly simple job for an average craftsman to replace them in most construction tools. -I've done many of mine including my oldest, a 1970 Skilsaw -still going strong, in almost daily use.
What is the formula to figure the amount of cement needed in yards?
There is 27 square ft. in a yard of concrete so you can break it down by square ft. If you are pouring a patio that is 20' X 30' X 4" thick Take 20 X30=600 then devide by 81 = 7.40 yrds. How did I get 81? It takes 3 slabs 12" X 12" to make 1 Square Ft. so 3 times 27 = 81
There are 27 CUBIC feet in a cubic yard.
Formula:
Cubic yards = (((Length x width) x thickness) x 1.1) / 27
All three dimensions--length, width and thickness--need to be in feet. To turn inches into feet:
Feet = (inches) / 12
You multiply by 1.1 to compensate for non-flat bottoms of areas where concrete is to be poured.
Now! If you're using bagged concrete, here's a fun and easy way to calculate the number of bags required:
First, calculate the cubic feet of the area. Just use the cubic yards formula, but don't divide by 27 at the end.
Next, divide the cubic feet of the project by the number of cubic feet in a bag of concrete mix. There are:
40 lb bag = 0.30 cf 60 lb bag = 0.45 cf 80 lb bag = 0.60 cf
So, if you are building a 6x10 dog pen and want a 3" slab (never, ever pour less than 2" slabs--anything thinner falls apart) you will do this:
6x10 slab - 60 square feet 3" thick - 15 cubic feet Add ten percent - 16.5 cubic feet If using 80-lb bags - about 28 bags
The amount of concrete you need for a job shocks most people...but that stuff isn't light.
Another way is LxWXH then divide by 324. This will work for any thickness of cement.
a mythical tool that has no info about it on the web
its a tool that you hit chickens with
I have a slide hammer set. This is basically a 24" bar with a heavy cylinder that slides either way on it and a number of different heads that can fit on one end. Slide hammers can be bought in good tool stores, particularly stores that specialise in auto-body and sheet metal work.
- Many people are simply too ignorant to realise this ISa real tool.
How do you drill a five sixteenth inch hole four inch depth flat bottom hole?
5/16 hole X 4 inch on a flat bottom hole: This will depend on the material, and tools available. Use a 1/8 bit, then 5/16. If you are not sure how deep the drill bit is in the hole, paint white out on the bit as your 4 inch mark so you can see it while the drill is spinning. If the material is metal, you will need coolant.
To get the flat bottom: it wood, put a flat ended bolt into the hole and hammer, it will flatten the hole, it metal, forget about it, the hole is quite flat, and a pain in the butt to change. :-)
Jethro Tull who was born in the year 1674 in Basildon, Berkshire invented a machine that is now called the grain drill. This machine helps in increasing harvest by planting in straight lines.
[THE BELOW ANSWER IS FOR REPLACING BLADE, NOT NEW BLADE AS THE PERSON ASKED]
1. Make absolutely certain that the saw is UNPLUGGED!
2. Are you SURE the saw is UNPLUGGED???
3. Open the guard and place a small piece of wood into the teeth of the blade so as to hold it in one place.
4. Use the flat wrench which came with the saw or a box wrench of appropriate size to unscrew the bolt which secures the blade to the saw motor shaft. This bolt is probably a "left hand thread". Meaning it unscrews in the opposite direction from normal bolts (Remember "Leftie Loosie, Rightie Tighty? Reverse that)
5. Carefully lift the blade away from the saw motor shaft after catching the unscrewed bolt in your fingers.
6. Place the replacement blade onto the shaft, making sure that if there is a diamond shaped metal insert there, that it fits the shaft. Some blades have inserts, some do not.
7. Tighten the bolt back onto the shaft remembering that it is a Left-Hand Thread and tighten in the opposite direction of a normal bolt.
8. Tighten the bolt firmly, but not "too tight"
9. If the bolt is too loose you will know it when you attempt to saw as the blade will slip. Just re-tighten the bolt at that time after unplugging the saw prior to using the wrench on the bolt again.
How did the bull float get its name?
A Bull Float got its name because it is the first float used on concrete and other surfaces to get the first water off and begin to smooth the surface. The term Bull refers to the fact they are large and rather clumsy to use.
Can a nail gun be used on a plaster wall?
I wouldn't recommend using a nail gun on plaster, it may shatter around the area you would be nailing. I would predrill a whole and use screws into the studs. I recommend using a concrete drill bit. If you plan on covering the entire wall with wood or something then you could get away with using a nail gun, but if you ever take that wood down the plaster wall will be ruined. You could always fill in the pre-drilled holes and paint over it if you ever wanted the plaster look again if you went with screws.
How do you use an electric tile saw?
you use it
Well they do come with instructions, make sure you get the right blade for the right tile,keep water flowing it will prolong the life of the blade,and you are less likely to chip the tile, dont force the tile into the blade push it gently once it starts you hardly have to apply any pressure. When using a wet saw make none of the cords are frayed, it gets kinda messy so I wouldn't use it inside a finshed home.
How do you use a piller drill safely?
Use Goggles, Stand as far as you can away from the drill, Make sure you clamp your material and finally make sure you are drilling into a scrap piece of wood or clean space underneath the material.
A hammer when swung in a downward motion contains energy. When the hammer strikes an object the energy is transfered to the object i.e a nail, causing the nail to move in a downward motion.
One might ask the question how does a screwdriver work. The turning motion of the screwdriver upon a screw causes the screw to pull itself into, say, a piece of wood. Like the hammer energy is the important factor. Velocity and weight of the head
Who invented the panini press?
This web site might lend a bit of illumination about the sandwich, however it doesn't answer your question. Everything I found on GOOGLE, which wasn't an ad trying to sell panini press's, mentioned their being Italian in origin, though there are earlier references to presses and/or pressed sandwiches. Cuba has a very similar offering. Sorry to say, I could find no attribute to the inventer of the press (waffle maker, sandwich press etc.)
http://ilforno.typepad.com/il_forno/2004/04/il_panino.html
FriPilot
What is the difference between a drill bit for plastics and one for wood?
There is no difference, I drill both frequently with the same drill bits.
