How to drill A Hole In A Bowling Ball
How to drill a bowling ball | Walking through the steps of drilling a bowling ball with switchgrip
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I know this seems stupid to the people
who you know I've been drilling a long
time no we don't need a you know video
to teach us how to drill balls we've
been drawing their own ball for 50 years
well you got a lot off a lot of awfully
new people who are drilling balls now
who are trying to get into the industry
and trying to understand how this works
and learn and do a little bit more for
their customers so I'm gonna start
putting out some of these real basic
videos just so you can watch these and
see the way I do things a little bit you
don't have to do them exactly the same
as me but maybe this will help you to
see it a little bit differently and to
give you an idea on how you want to make
it work for yourself for your customers
what's up guys junior Raymond back again
coming to you from Mr B classic Pro Shop
where today we're gonna go through the
process of drilling a bowling ball and
we're going to talk about switch grip
what it takes to install switch grip and
a bowling ball we're gonna do it with a
radical Squatch hybrid so as soon as we
get back we're going to talk about that
stay tuned
[Music]
all right so we already talked about the
layout process and everything you know
we know how to do the storm vector we
know how to do the dual angle layout so
we know how to lay a bowling ball out
and get what we want out of that bowling
ball so now we're gonna take this and
we're gonna make our markings to figure
out exactly where we need to go and put
the holes in the ball so I know that my
span from cut to cut is actually four
inches for this first number for my
middle finger to the cut of the thumb
hole or the cut of where the switch grip
outer goes to so I actually need to make
a mark there as soon as I make that mark
on that centerline I need to make a nice
clear mark straight across okay because
we're always gonna do the thumb first
we're gonna get that lined up so now
that line right there is line that we
need to hit for the thumb so let's take
it over here let's do the thumb and I'll
talk about the switch grip for you here
in a second all right so the balls on
the press we're ready to go
now we got to do is figure out where to
put that line we already figured that
out we put the line there okay so what
we're gonna do is we're drilling a
switch script okay so switch grip is one
of the most popular if not the most
popular interchangeable that there is
and this would be the same as if we were
doing a thumb hole okay so nothing
changes as far as trying to hit the line
so all we're going to do is we're gonna
get this lined up centered so with your
jig wherever the center is make sure it
is absolutely centered so that way you
have everything in line and now you take
your center line and you make sure it's
directly front to back because the way
the pitches go you're doing front to
back and left or right based on whatever
for me I always do all my outers anybody
who has an outer sleeve or do switch
grip if they don't have pitches above a
quarter of an inch either way I leave
all of their outers at zero is then that
way I have the ability to drill them a
new thumb at a different pitch and we
it'll fit and all their bowling balls
still it doesn't matter so I know some
people used to teach that you should
drill the outer at the pitch that you're
using for the bowler I think that just
becomes too complicated
makes it tough and that's when that's
when you start seeing difference from
going from shop to shop not that you
want your customers going from shop to
shop but that's just what happens people
go and they get a quarter of an inch
left and a quarter of inch reverse in
their outer and they go to the next shop
who's where their press isn't exactly
calibrated properly and their quarter of
an inch is gonna be just a little bit
different so now you're seeing their
thumbs sit up or down depending just a
little bit based on that so and then you
have the people who like to take their
switch grip bit and move the outer to
remove the cusp here move the the collar
or the stop or whatever you want to call
it they undo the nut and they move the
stopper to a different depth and they
think that that's making it to where
people now have to come back to them
that's not necessarily true either
because you can always find the depth of
that so what we're gonna do is make sure
our gauges are set at zero okay
we're gonna make sure this is zeroed out
right here this line needs to be
directly front to back
you know lock the ball into place
everybody's jig is gonna be a little bit
different okay so you just have to make
sure it is perfectly front to back on
whatever jig that you're using okay now
I want to hit the center of that line so
we're gonna take it down and make sure
it is centered and you know that this
line is front to back perfect because
now from here to here this is lined up
perfect from this center line so in
order for me to find the edge I'm gonna
use one of these magnets that are
straight up and down and I'm gonna move
this ball back until that edge of that
magnet touches the center of that line
so you can see it's on the backside of
the line right now okay so we're gonna
stop it right there now let's just touch
it just a little bit now that this part
really matters at all but now you know
that you're going to touch the center of
that line right there and you'll be good
to go
now we're just gonna drill the hole up
until it stops on this stopper and you
don't want to press down hard you just
want it to go down and I'm actually
skipping a step what I actually suggest
is to check this and make sure it is
perfect go down you can see now we're
actually through the cover and that hit
the line perfect so now we're going to
shut her down we're gonna take this bit
out I'm going to take my inch and
three-eighths bit we're gonna drill a
pilot when you actually need to go
deeper than what that outer sleeve
actually is
we'll take them clean that out a little
bit put our foot strip bit back in and
now we're gonna run it down until the
stopper hits and remember once it
touches you stop you don't want to press
it down some cover stocks are a little
bit softer than others so you can
actually change the depth by about a
sixteenth of an inch if you press down
too hard clean the hole out go up and
down a little bit and make sure it's
nice and smooth as soon as it touches
there don't press down but as soon as it
stops you make sure to stop that's the
one way you can make sure your depth is
the same every week or every ball all
right so now we have that hole drilled
and if we were to look at the bottom of
that let me see if I can get you to see
we look in that hole you can see the
pilot actually is deeper than the actual
hole itself okay so now we're set up
ready to install the outer so the first
thing we need to do is we need to make
sure and check what this outer will go
in and out okay so now we can get it in
there it's gonna be a little tight but
that's okay we should make it to where
it goes in and out nice and clean so we
want to open that hole up just a pinch
back
[Music]
if you have a reamer bit or you can run
it down in there after you're done with
your switch grip bit you can do that as
well little pricey two hundred and ten
dollars or so then they also make
sanding pad inch and a half sanding pads
or inch and three-quarter sanding pads
that can run down there as well and line
this back up a little bit so now we can
go in see that goes in a little bit
better so we're good there alright so
now we're gonna take some slows up it's
a turbo slows up so it's just a glue
that cures just a little bit slower it
gives us an opportunity to get that
outer in in the proper spot without it
getting stuck in the wrong position so
we're just gonna put a bead all the way
around the outside there now we're gonna
take a rasp and we're gonna rough up the
outside of our outer we've got to have
something that it can adhere to you
don't want that shiny outer trying to
stick to the glue sometimes you'll get
then that will pull out every so often
some people who squeeze an awful lot so
once we get this all roughed up all the
way around see how rough that is now now
we're gonna take we're gonna line that
notch you can see a notch with a line
that goes all the way down that's gonna
go back to the backside of the hole so
this line that comes back to the back of
the hole we're gonna line that notch up
with that okay and I like to use another
slug or something that also has a way to
line up as well
now we're gonna press it down and then
we just kind of guide the outer down
into making sure it's lined up straight
with that back side of that line now
it's in properly see that notch is
directly in line here even though I just
wipe the line away that notch is
directly in line it would be straight
all the way up and down through here
I've seen some people who like to put
the notch on the top side not really
sure why but they do
you I guess that's not necessarily wrong
but I guess I never teach anybody to do
that maybe they do that so that way
people have to go back there I don't
know it's one of those things again so
now we're going to cut this down
obviously make sure your tresses back at
zero when you cut down the outer flush
to the ball
all the way down okay so now we're good
now we're gonna take a knife and we're
going to clean that hole up and bring it
back you can see there's still some
shavings you can see there's still lip
there so all you do is you just take one
of these knives like this just cut
through it if you have one of turbos
plug cutters one of their red carbon
plug cutters they actually work the best
and you don't end up having to do this
it actually just shaves it right away by
itself
problem with those is they're so sharp
sometimes if you go too fast and too low
you'll cut the ball so we don't want to
do that so then we just actually just
throw this out a little bit just to get
rid of that sharp edge you don't want to
do it too much because you still want
the thumb to actually sit flush and
clean it out okay so now our outer is
installed now don't put an inner in
there don't put your old thumb in there
right away because we don't want to get
them glued in because there is still and
the reason we put that pilot at the
bottom is for glue to run off down on
the bottom there if it does if it
happens to cuz when you put that outer
in it's obviously gonna push some of
that glue towards the bottom of the hole
and we don't want it to get built up
underneath the mechanism inside the hole
we want it to run off into that pilot
hole that's why that's there a little
bit will go underneath that mechanism
underneath but you want to just make
sure you wait a little bit
let that dry out before you try to put a
thumb in it and make sure it's right so
if you're drilling a switch grip outer
for somebody for the first time and they
don't have any thumbs yet you still want
to wait ten minutes or so to let that
dry before you put a blank enter in
there to drill their thumb out for them
so we're gonna move on to the next step
now all right so now we got to do the
finger holes based on the centerline so
I'm gonna redo the centerline just to
make sure it's there properly and good
enough there you go now we got a nice
centerline and straight through so now
we got to measure it out my span on my
middle finger to this cut is
this thing moves a lot 3 and 15 so I'm
going to make a mark right at 3 and 15
and then right over here as well 3 and
13 ok so now we're gonna make another
mark so we're gonna go back over here to
3 and 15 again I'm gonna make another
mark over here 3 15 and back over here
again 313 now we'll just draw a straight
line we're gonna connect the dots there
so they're straight over you'll notice
it's actually at an angle a little bit
it's not a straight line across because
if we do a straight line across the the
span will actually come out just a pinch
longer than what you want okay do that
there then what you can do to get your
perfect bridge Center this up with your
pro SEC like this straight up and down
you just draw a line there and you just
draw on this side of it and that side of
it and now you got your bridge there so
you're good to go there so now we got a
remesh make sure we're right come back
over here and check it out see it's 3
and 15 all the way across straight to
the center of that line okay
always double-check this because if
you're hitting at the top or the bottom
of that line then you're gonna change
the span by a sixteenth of an inch or
1/32 and sometimes people can feel that
you know I know that sounds awfully
picky but sometimes people can feel that
little bit of a difference so I know
that this is right so I just need to hit
the center of that line and the the
bridge line itself and then we'll be
good to go so we're gonna take her over
to the press again and now we're going
to line up same thing ball has to be
obviously now you want the fingers
closer to where you're gonna be but the
ball still has to be front to back
perfectly okay then we're gonna put our
pleat back on lock her in place now we
need to adjust our pitches to where I
want so I am a quarter or yeah a quarter
away on my finger so I need to drill
into the ball that way so in order to
drill into the ball that way we actually
have to move the jig in the ball towards
so when we move the dimensions back this
way okay
that means we're drilling into the ball
that way so we're gonna set it up I have
the digital gauges here so I just get to
0.250
which is one quarter of an inch and then
I need three three eighths of an inch
going this way so now I got again I got
to move the ball this way to drove that
way now we're gonna move it over here to
375 now I have my picture set up perfect
and I do I use the vacuum system okay so
I'm going to drill a little bit bigger
hole to start and we're gonna go about
an inch deep and then we'll put the
thirty one thirty second bit end and we
will drill the rest of the way with
thirty one thirty second for the vacuum
system
you
there you go now I just got to move it
the other way same pitch now I'm moving
it the opposite way though for
side-to-side 375 and readjust my in
China 64th back out
you
this way and you don't want to touch
these fingers too much you want to leave
somewhat of an edge there so don't round
them out completely but we have to round
them out a little bit just to make sure
they don't crack out so we're gonna do
basically touch it touch it just a
little bit don't have to do much
we're not beveling up
yes now we have all our holes now show
you let's go glue some grips in all
right so now we're ready to glue some
grips in we got our turbo zip plus again
it really doesn't matter what blue you
use for this for the most part just make
sure you have a good super glue of some
sort
and what we're gonna do is we're gonna
line these grips up properly and this is
where most people make a little bit of a
mistake the habit that people have if I
were to use the the left side I'm not
gonna use the left side but if we for
visual purposes if we were to be the
standard Pro Shop what they're gonna do
is they're gonna do it just like that
they're gonna have these lined up
straight with here but when you put your
fingers in if I were to put my fingers
in that way straight up and down on my
thumb needs to be over here okay because
otherwise now I have to screw it in and
you watch see how my fingers turn as I
go to put my finger thumb and my fingers
turn and now that those the the shape of
the grips is in the wrong spot so we're
actually would do is we would just turn
them a little bit with your fingers it's
that way now
you're putting your fingers in based
over here and then your thumb just goes
in and now your fingers aren't turning
at all now you have the proper grip
there so but I use the oval side so
we're gonna switch this around I use the
grippy side of the oval and gluing in
vacu grips is a little bit different as
you can see now you can see if you look
at it you can see how much there's
there's movement at the top of the hole
and that's that way I can put tape on my
finger and I can get into that hole and
it expands a little bit for me so that
way I don't have it too tight okay so
we're gonna line these back up first
thing I'm going to do is I'm always
gonna do the inside part of the grip put
a dab below that crease and then we're
gonna put a little bit at the very top
just that way we can press this over
like that nice and flat through that
spot so the grip sits flat okay then
we're
do the bottom side over here and even a
little bit further over we're just gonna
do three spots on this so I put a little
glue below a little bit at the top to
secure the top just a dab you don't need
much glue we're gonna hold it down we're
gonna press it in there it's flat all
the way across here now you can really
start to see that gap now you can see
the gap on that side you're gonna do one
more dab down here just to get that side
to stay down now you see that's where I
have my gap is back here so now I have
room for expansion okay so my fingers in
I can actually expand front to back same
type of thing over here dab on the
inside on the bottom dab on the top
press it into place so it's flush go
over to the next spot
just a DAB there little drop on the top
press it in flush good the last spot
right off on the side well I got plenty
over there tiny little dots like that
there we go so now we're good now we
have that expansion on both fingers
let's go so now we check a thumb make
sure the thumb sits nice and flush I
should go right in pushes in and then
just lock it in turn it all the way good
to go so it's nice and flush no raised
edges still wouldn't leave it in there
very long take it back out look at the
bottom any glue at the bottom no glue
you don't see any shininess so we're
good to go this ball would be ready for
use alright so there we go that's
basically the the basics of drilling a
bowling ball
obviously most everybody's gonna know
this already but there are some pro shop
people out there who are just starting
to learn they want to know some of the
different techniques what other people
use what other people do how do they
line up their press how do they line up
their pitches
you know what do they do what do they
think about when they're moving the
pitches because one of the one of the
hardest things that people have is when
you're first learning is remembering you
know which way to move the press to get
what type of pitch you know so I always
just think about it as the way the ball
is moving
if the ball is moving to the right
you're gonna drill into it to the left
if the ball is moving towards you you're
gonna drill into it away from you and
vice versa so just think of it that way
it's easy to remember that way instead
of trying to remember - and plus and all
this other jazz that's just a simple way
to look at it but I want to make these
videos just I know this seems stupid to
the people who you know I've been
drilling a long time no we don't need a
you know video to teach us how to drill
balls we've been drawing their own ball
for 50 years well you got a lot of off a
lot of awfully new people who are
drilling balls now who are trying to get
into the industry and trying to
understand how this works and learn and
do a little bit more for their customers
so I'm gonna start putting out some of
these real basic videos just so you can
watch these and see the way I do things
a little bit you don't have to do them
exactly the same as me but maybe this
will help you to see it a little bit
differently and to give you an idea on
how you want to make it work for
yourself for your customers so that's
all I got for you today we got a Squatch
hybrid ready to go we're gonna take it
out in our lanes we're gonna check it
out so now we're gonna do a review on
this so until next time guys I'm out of
here we'll see you later
[Music]
you
