FAQ

Now that you’re the proud owner of our accessories, this extract from
our Frequently Asked Questions (FAQ) offers you answers to the most
FAQ about our products. Our tools are safe, efficient and easy to use,
however, you must read the Assembly Instructions in conjunction with
these FAQ’s. One does not replace the other and they’re both full of
information for the safe, efficient operation and maintenance of our
cutting blades. Please visit our website at www.katools.com for a full
version of the FAQ’s.
– Safety and Myths –
Q: Are the tools safe?
A: Yes. We have never had a chain break, disc crack or blade fly off
the grinder, contrary to some of the myths out there. Not one has ever
been returned through customer dissatisfaction or manufacturing defect.
The simple truth is that the chain can’t break because it doesn’t move
independently like a chainsaw, which rotates on a bar. The chain on
every one of our products rotates as one unit locked between the top
and bottom discs, the total assembly being secured by the lock nut
which is further secured by its clockwise tightening when the motor
turns anti clockwise. The chain can’t go anywhere as it spins in
conjunction with the discs.
Another design feature ensures the blades never heat up due to the
cooling effect provided by the four holes and slots in each disc, main-
taining their long life. For safety reasons, our discs are manufactured
with specific center hole diameters, which is why we don’t use reducing
inserts or bushings. The discs also have a patented anti kickback clutch
action when the chain hits an immovable object like a nail or wire, how-
ever, do not force the blade and twist it in the wood during operation.
Like any other cutting attachment, if twisted hard or rapidly
against the
sides of a deep cut you made in the wood, the forces exerted could
induce a kickback.
Let the tool do the cutting - it’s more than capable.
We are very proud of our excellent safety record, however, please
keep in mind that you must always use caution with a power tool.
The biggest danger is complacency and lack of atten-
tion to the work. You must always be alert and
aware that the blades travel between
10,000 - 11,000 rpm at three times the
speed of a chain saw with twice as
many teeth!
Used correctly, there’s
nothing better or faster on the planet.
– Safety Guard –
Q: Why do I have to change the
position of the safety guard?
A: For safety, optimum performance and carving in a comfortable
position. The recommended way is the only way. To underscore the
importance of this requirement and for further emphasis: if you don’t
change the safety guard position, don’t use our blades. For detailed
information, refer to “Warning: Safety Guard” in the Assembly
Instructions.
Q: Can I work without a safety guard?
A: No, no and heck no! It’s not good for your health or safety. If you
want to remove the safety guard for any reason, don’t use our
blades. Running them without a safety guard is done so at your own
risk. Please don’t under any circumstance!
Q: Is it easy to change the safety guard?
A: Depending on your model grinder, it should take a few seconds with
a simple turn to the left, or less than a minute if you need to make a
screw adjustment. One exception is the Makita 4” or 100mm angle
grinder. Please read the next question:
Q: I have a 4” Makita that has two screws securing the safety
guard at 90˚. What do I need to do to chan
ge the position of the
guard to 45˚?
A: This particular machine is the only one in the world that has this
type of safety guard and requires a simple fix to change its position.
For detailed information, please go to our website at www.katools.com
and click on FAQ, Angle Grinders, Makita 4” Safety Guard or call
1-800-942-1300.
– Angle Grinders –
Q: I don’t have an angle grinder. What do I need?
A: The answer is
“what do you want to do - use one or two blades?”
Depending on your country, 4” and 4-1/2” grinders or 100mm, 115mm
or 125mm grinders can be used as follows:
Single blade use only: If you only want to use one Lancelot or Squire
blade on its own you can use a 4” or 100mm angle grinder. The blade
you select must have the 5/8” (16mm) center hole. It is important to
note that with one known exception, you are limited to using a single
blade and cannot fit a tandem combination on 4” grinder
s. They’re way
too underpowered for two blades. The one exception we know of is
Makita Model 9501B, 10,000 rpm 4.0Amp 10mm shaft - but you need to
order part number 224291-1 inner nut to fit two blades. The nut has to
be specially ordered from the Makita dealer.
Tandem, dual, double blade or two blade combinations:
You can use any 4-1/2” or 115mm and 125mm angle grinder for
any tandem combination. We recommend that you use two
blades with either 5/8”, 14mm or 15mm center holes, depending
on your country.
For all round versatility we highly recommend using a 4-1/2”,
115m or 125mm angle grinder.
That will allow you to fit any tan-
dem combination as well as using them as single blades. Nearly
every 4-1/2”, 115mm and 125mm grinder is suitable for use with
our blade accessories - the exceptions are certain 4-1/2” Skil
models with a 3/8” center shaft. While our accessories
will fit all except the Skil power units, we highly
recommend angle grinders that have a paddle
switch versus those with a thumb controlled
on/off slide switch.
Q: Why do you prefer the
paddle switch over the thumb controlled on/off slide switch?
A: For two major reasons. Reliability. In extensive testing, most
manufacturers thumb on/off switch angle grinders have failed. Switch
failure occurs over a period of time. None of the paddle switch grinders
we’ve used have failed. Ease of Operation. Depressing a paddle
switch with thumb/fingers curled around the switch on the side of the
grinder is slightly easier than reaching for a thumb switch located on
the top of the grinder. The switch is depressed with the thumb or two
to three fingers, depending on the model grinder, versus the thumb
controlled on/off slide switch located on top of the grinder body.
FREQUENTLY ASKED QUESTIONS – LANCELOT AND SQUIRE
(cont. on back)