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How to use a Jigsaw - Basics



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today an introduction to this guy the jigsaw  if you haven't already grab your saw grab some  

safety glasses and I'll see you in the shop so the  jigsaw also known as the saber saw is a fantastic  

tool for the carpenter because it's great for  cutting irregular shapes and curves it's great for  

cutting notches and framing and lumber and decking  for making curved cuts in plywood and it works  

really well for cutting circles now this jigsaw  is similar to a circular saw in the way that it  

actually has a blade it has a handle and a trigger  and it has an adjustable base plate but the jig  

saw has a straight blade and unlike the circular  saw blade this blade cannot be adjusted for the  

depth of cut now the two most common types of  jigsaws in the market for residential construction  

are the top grip like mine here with a trigger and  the other type has a barrel grip that puts your  

hand behind the motor and behind the blade for  more control both are a great option in my opinion  

it just all depends on unfilled and your personal  preference but either way you go be sure that you  

buy a jigsaw that accepts t shank blades trust  me on that so with that blade selection is really  

important first before you buy a blade you need to  ask yourself what am i cutting and how do I want  

that cut to turnout and I know you've guys have  heard me say that before so for instance if you're  

cutting framing lumber and you need that cut to  be fast and that's so clean then choosing a blade  

with a lower TPI is what you're going to need  now on the flip side of that if you're choosing  

to make a really clean cut more precise cut then  choosing a blade with a higher TPI is what you're  

going to need what is TPI TPI stands for teeth  per inch somewhere on the packaging it'll note  

the teeth per inch so this is a three pack and you  can see on the bottom that it shows that it came  

with a 20 into 14 also at the top it also has  a little logo that it fits the T shank which is  

very important and sometimes some packaging not  only shows the teeth per inch but it also gives  

a description of what it's used for and second be  sure to choose the right blade length you need to  

make sure that the blade is at least an inch or  really more than the death of your material and  

then third I would buy blades that only cut on the  upstroke this represents really the majority that  

blades out there but you can buy blades that cut  on the downstroke why is this important well to  

answer that question you first have to understand  the cutting action of the jigsaw is up and down  

when the blade is cutting on the upstroke the base  plate is being pulled in tight to the material and  

then when the blade is cutting on the downstroke  it actually wants to lift the base plate off the  

workpiece creating a better opportunity for  kickback and injury but as long as you use  

caution these blades can be very very beneficial  the other thing you need to understand is that  

when the blade is cutting on the upstroke it  creates tear out on the top side of the material  

which could actually be your finished surface  and that's exactly why some people like to have  

blades that cut on the downstroke because really  the majority of time when you're laying something  

out or drawing something it's on the finished side  of the wood let's move on and look at some of the  

features of this saw first is a toolless this is  super fast very easy and honestly it's kind of  

fun next is the adjustable base plate which then  can be beveled to a 45 degree angle for making  

bevel cuts and then third the trigger is variable  meaning that the harder that you depress it the  

faster the blade will go this gives you a lot of  control when making cuts and lastly the adjustment  

for the amount of reciprocation what this means  is set to zero reciprocation the blade tracks  

perfectly up and down but with different levels of  reciprocation added the blade will actually travel  

more in an oval shaped pattern sort of lunging  forward which produces a more aggressive cut  

this is an example with no reciprocation added  and this is an example with it turned all the  

way out speed and quality really are the two main  things that are affected with these adjustments  

alright let's talk about three types of cuts to  the circular saw first is a is a short straight  

cut which is common for this saw because long  cuts are not so you can be used in finished  

carpentry and installing some cabinets and for me  I've used it a ton of finishing off circular saw  

framing lumber the regular cuts are very common  and maybe one of the biggest uses of this saw  

great for cutting curves and with a thin scrolling  blade you're able to make some really tight curves  

lastly cuts in the middle of the material things  like circles squares or any other shape that you  

need now to do this you need help from a drill  bit you simply drill a hole insert the blade  

and make your cut for anything other than circles  sometimes multiple holes makes the job much easier  

and if you need to the jigsaw is great at nibbling  away material I do this all the time now I can't  

leave out the plunge cut the plunge cut is a  faster way to get the blade into the material  

without using a drill bit now it's gonna leave  a really rough cut but that's what the plunge  

cuts all about it's all about speed and it's  all about I don't have a drill bit and I need  

to get this cut done now two things of caution  first the plunge cut is a little sketchy the  

saw will want to kick back on you if you don't  come down just right or have the right angle or  

if the blade is too short and that's what I found  that the longer the blade the better this plunge  

cut goes second in regards to using the tool in  general always take the time to look under what  

you're cutting it's so easy to forget about the  rest of the blade that's traveling beneath the  

material I've cut extension cords I've cut its  own cord I've cut plumbing let's just say I've  

cut a lot more than just wood over the years of  using this saw but with a little bit of practice  

you can get really good at this and it's a great  asset to your toolbox well that's gonna do it  

for the jigsaw today if you're interested in  learning more about other tools and their uses  

you can head over to my website and click on  my playlist called tools and uses if you have  

any questions of course you can leave a comment  below you can always email me at any time it's  

been an honor being with you today and until  we see each other again be well and stay safe

you