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- I'm Jarod Deanda and this is Snap-on Tool Tips.
We're looking at the brand new PT338 Pneumatic Impact.
There's still place in the Bay to get
off those stubborn fasteners.
- Air still has a place in the bay
and you know, this delivers a lot of power,
very compact package in a 3/8 impact gun.
- Yeah, it's tiny, but it still creates a large impact.
So what are some of the specs on this?
- [Scott] Yeah, so some specs on this gun,
it's four and three quarter inch, total length.
So it's nice and small and compact,
just perfect for caliper bolts, you know,
especially being in the rust belt.
You gotta get in there and break those loose.
Great for crank shaft bolts, suspension, you know,
even for water pumps, alternator, anything,
you can really...
- Those bumper brackets, right.
You... like you said, the salt belt getting those things up.
Ga, ga, bam!
- Great compact access tool.
So anywhere you can think that you just can't get quite a
large impact in there, this is going to take care of it.
- You've got the nice variable trigger.
So you don't hit it all.
- Right. - Right out of the gate.
You've got one, two, three
on the back, so fully adjustable.
- Yup. - And what are
we looking at spec wise as far as foot pounds?
- [Scott] Yeah so 500 foot pounds of operating torques,
700 foot pounds of bolt breakaway torque.
Like you said, nice large selector knob
on the back of the tool.
So you can adjust your power level, variable speed trigger.
So allows you to kind of feather it in, if you want.
Easy forward and reverse selecting-lever.
So really designed for the technician to be as efficient and
powerful as possible.
- [Jarod] looks great, but let's step inside.
Feel like we're talking about an engine and we kind of are,
but cylinders, valves, I feel like we're
going in internal the big V8.
- Right, yeah. So let's just start off
with the cylinder and the valve.
So this is how the air is delivered to your tool.
We precision machine these in Murphy,
North Carolina at our manufacturing facility.
And what's very cool about this is this is metal, obviously,
and then we do a composite valve.
So why we do that there is a number of reasons,
cause we designed this to withstand in the harshest
environments of shops. Right?
So not every shop has these great air filtration,
lubrication systems.
So all of the air that's going through your tool,
no matter how dirty it is,
whether there's water or grease or contamination,
you don't want these components to stick.
Cause if it gets stuck in forward or reverse,
it's because of this situation.
So having a composite, allows this to move freely
for the life of the tool.
- Yeah. Because you get that friction
and people would say, "Oh man, you're going
to create failure there with that composite piece",
quite the contrary, it's actually freeing it up
and loosening up, cause you got dust and dander,
as you say, "Fluids, all of that around your shop."
- Exactly, and it also allows you to have that
featherability.
So when that valve can move and deliver the air efficiently,
you can very easily feather that trigger in to deliver the
power that you want.
- Now let's compare.
What are we looking at here?
I'm seeing six, eight, I'm similar components,
but there is a star contrast.
- Right, So air comes obviously into the tool,
spins past this, hits the rotors
and that's how everything spins. Right?
So this is essentially the motor of the tool.
So, height-wise not too much difference,
ours is a little bit bigger,
but what you really notice is the diameter of the motor,
that's were the big difference is.
So we also precision machine these in
Murphy, North Carolina.
And because we can have such tight tolerances and make that
rotor bigger, we can deliver more power,
more RPM to the tool
- And I'm seeing six of... what are these called?
- Those are the veins.
So that's how essentially the motor spins up.
So when air comes through, you know, it's just
like a fan that's pushing it around, making that motor move.
So we have eight, competitors will have less
or six in this case.
And that's important because you want...
you have less opportunity to be in a stall position.
So you hit the tool and it doesn't want to do anything,
sometimes you got to rotate the anvil by hand or something
like that and then boom, it'll spin.
- Yeah. - When you have
eight veins, you'll have less opportunity
to be in a stall position.
- Right. - So it's going
to fire up every time.
- I feel like it's teeth on a ratchet, you know
you get those fine tooth ratchets that really are
just are right there, ready to strike.
- Correct, right. - What do we have next
- Alright. So moving a little further down to
the working end of the tool.
This is the anvil, obviously what comes through the tool.
Couple of differences, we have a little bit
larger shoulder for where the bearing surface sits,
so that makes it just a little bit longer life,
for the tool, but where you really notice
is here where the anvil and hammer meet.
So there's 50% more surface area right here.
And that gives you better tool life.
So essentially you're giving more space for
those hammers to hit.
And so you have less wear on the tool.
It'll last longer and deliver the power level
that you expect.
- Speaking of lasting longer,
a lot of pneumatic impacts utilize grease.
Snap-on has a signature oil bath system
utilizing red line oil.
- Correct. So there are, obviously,
moving components in here, which we just talked about,
so you need to keep those things lubricated and protected.
We use a red line oil bath,
and so that keeps it free and clear for the duration of its
life and allows that tool to operate at peak efficiency,
whereas grease, you know, it gums up,
it wears out and that's when you need to repair it.
- Awesome. You've seen the internals.
You see this stubby right here.
The PT338, great option in Pneumatic Impact.
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