Edgecraft Choice 464 User Manual

Pronto® Diamond Hone®
Knife Sharpener
Model 464

Congratulations!!

The Pronto® Diamond Hone® manufactured
by Chef’sChoice®, the worlds leader in cutting
edge technology, is an exceedingly fast manual
sharpener that will create an exceptionally
effective cutting edge on all of your conven­tional household cutlery. The cutting edge is
finely honed to extreme sharpness but retains
strong microscopic teeth that gives it a highly
effective bite for all your food prep needs and
especially for fibrous materials. The edge is
surprisingly durable yet can be resharpened
quickly whenever necessary.

You will be pleased to see how easy the
Pronto® is to use and how well your knives
perform. Read and follow the instructions
carefully. Keep the sharpener close at hand
so that you can enjoy the pleasure of sharp
knives every day.

In each, the first and second stage, both
sides of the edge are sharpened simultane­ously by two precision diamond coated conical
honing disks. The orientation of the disks is
such that by sharpening in both stages the
entire length of the edge is sharpened.

Small rubber feet secure the Pronto® to
any dry clean surface. The soft touch handle
further reduces the opportunity for slippage
while sharpening.

USING PRONTO

®

Note: Always clean your knife before sharpen­ing in the Pronto®!

You will find that the Pronto® can create and
maintain an exceedingly sharp and effective
edge on all your conventional fine edge and
serrated cutlery. The primary edge facets
are each formed in Stage 1 at a nominal 20
degrees which results in a total primary edge
of 40 degrees. Stage 2 creates a second bevel
at a slightly larger angle leaving a strong
double beveled edge structure that will stay
sharp longer.

Always use the sharpener with the stage
numbers 1 and 2, facing you.

Safety: Keep your fingers clear of the
blade edge at all times. Hold the handle with
your left hand making certain that all your
fingers and thumb remain safely behind the
partition wall where the handle attaches to
the sharpening stage.

STAGE 1

To sharpen, hold the sharpener on the table
with your left hand. Insert the knife blade into

the slot of Stage 1. Press down to bring the
knife edge into firm sustained contact with
both of the two internal diamond coated disks
and slide the blade back and forth in a sawing­like motion. For optimum results center the
blade left to right in the slot and avoid rubbing
against the walls of the slot. Apply a downward
force of about 4-5* pounds as you move the
blade. Listen carefully to the disks to insure
they are rotating when you move the blade.
Sharpening will not be as effective if you press
too lightly while sharpening.

If your knife, before sharpening, is not very
dull you may find that only about 10 or less
back and forth stroke pairs in Stage 1 (with
recommended downward pressure) will be
sufficient to put a keen edge on the blade.
However, if the knife starts out very dull you
may find that 20 or more back and forth paired
strokes will be needed the first time as you
reshape and sharpen the old edge. Before
leaving Stage 1 check the edge for sharp­ness by slicing a piece of paper. It should cut
paper readily with only a slight roughness to
the cutting action.

* 4 to 5 pounds is about the weight of a 2 inch thick

telephone book

STAGE 2

If the knife is correctly sharpened in Stage 1
only 2-3 back and forth stroke pairs in Stage
2 will complete the small second bevel and
the edge will be very sharp and effective. It
should cut paper smoothly allowing you to
make straight or curved cuts easily.

For optimum results center the blade
(left and right) within the slot and keep the

DESCRIPTION OF THE PRONTO

®

You will appreciate that the soft touch ergo­nomical handle of the Pronto® is extremely
comfortable providing a secure grip. There
are two slots, the first (#1) uses fine diamond
abrasives to create and hone a sharp primary
edge and a second slot (#2) where that edge
is ultrahoned at a slightly larger angle with
micron size diamonds to its final sharpness.

Figure 1. Knife in Stage 1. Use back and forth
sharpening strokes with modest downward
pressure (See text.)

Figure 2. Knife in Stage 2.

length of the blade aligned with the center
line of the slot as you sharpen. Apply about
4-5 pounds downward force in Stage 1 and
a little less – about 3-4 pounds pressure on
the blade in Stage 2. Make smooth consistent
strokes while maintaining recommended
downward pressure and make certain the
disks are turning.

RESHARPENING THE KNIFE EDGE

Follow the procedure for Stage 2 described
above for “Using Pronto®”, making two to
three (2-3) pairs of strokes while maintaining
recommended downward pressure. Listen
to confirm the sharpening disks are turning.
Test edge for sharpness and if necessary
make four (4) back and forth pairs of strokes
in Stage 1 followed by two to three (2-3)
pairs in Stage 2.

Generally you should be able to resharpen

several times using only Stage 2.

SERRATED BLADES

Serrated blades can be sharpened in Stage

2. Center the blade in the slot of Stage 2 and
make five (5) forward and back stroke pairs.
Examine the edge and if necessary make
another 5 full strokes. Examine blade. If the
blade to be sharpened is very dull, first make
two full strokes (forward and back pairs)
in Stage 1 and then make five (5) paired
strokes in Stage 2. Because of its nature, a
serrated knife will never appear as sharp or
cut as smoothly as a straight edged blade.
Caution: Do not make many strokes in Stage
1, which can quickly remove metal from a
serrated edge.

Figure 3. Serrated knife in Stage 2.

ASIAN BLADES

The Pronto® which sharpens at a primary angle
of 20 degrees, can sharpen double faceted
Asian blades such as the Santoku which
is traditionally sharpened at 15º. However,
for optimum results we recommend a 15º
sharpener such as the Chef’sChoice® Electric
Models 15XV or 1520 as the preferred choice
for all Asian style blades.

Do not sharpen in the Pronto® any single
sided, single faceted Asian Kataba knives,
such as the traditional sashimi styled blade
that is commonly used to prepare ultra thin
sashimi. The Pronto® sharpens simultane­ously both sides of the cutting edge while the
sashimi knives are designed to be sharpened
only on one side of the blade. The previously
mentioned Chef’sChoice electric sharpeners
will also correctly sharpen these single
sided knives.

CERAMIC KNIVES

The Pronto® is not recommended for ceramic
knives.

SCISSORS

Do not attempt to use the Pronto® to sharpen
scissors. EdgeCraft does manufacture both
electric and manual scissor sharpeners.

BRANDS OF KNIVES

The Pronto® will put an excellent edge on
all of conventional metal Euro/American and
Santoku style knives regardless of brands,
including Henckels, Wüsthof, Sabatier, Lamson
and Goodnow, Global, Russell Harrington,
Chef’sChoice, Messermeisser, Forshner,
Mundial, Cuisinart, Kitchen Aid, Shun and
many, many more.

TEST FOR SHARPNESS

To test for sharpness and cutting ability of
your knife, hold a sheet of paper vertically by
its upper edge and carefully cut down through
the sheet a small (but safe) distance from your
fingers. A sharp edge (on a straight edge blade)
will cut smoothly without tearing the paper.

Alternatively try cutting a tomato. The knife
should penetrate the skin of the tomato and
cut through it on the first pull without applying
significant force to the knife.

MAINTENANCE:

• Theexteriorcanbecleanedwithadamp

soft cloth

• Periodicallyshakeoutanddisposeof

the metal sharpening dust by inverting

the sharpener and lightly tapping it

onto a newspaper, paper towel, or other

paper sheet

• Nooilsorotherlubricatingliquidsare

necessary with this sharpener

Limited Warranty: Used with normal care, this EdgeCraft
product is guaranteed against defective material and
workmanship for a period of one (1) year from date of
original purchase (“Warranty Period”). We will replace
or repair, at our option, any product or part that is
defective in material or workmanship without charge
if the product is returned to us postage paid with dated
proof of purchase within the Warranty Period. This war­ranty does not apply to commercial use or any product

abuse.ALLIMPLIEDWARRANTIES,INCLUDINGIMPLIED
WARRANTIESOFMERCHANTABILITYANDFITNESSFOR
APARTICULARPURPOSE,ARELIMITEDTOTHEWAR­RANTYPERIOD.EDGECRAFTCORPORATIONSHALLNOT
BELIABLEFORANYINCIDENTALORCONSEQUENTIAL

DAMAGES. Some states do not allow limitations on
how long an implied warranty lasts and some states
do not allow exclusions or limitations of incidental or
consequential damages, so the above limitations or
exclusions may not apply to you. This limited warranty
gives you specific legal rights, and you may also have
other rights which vary from state to state.

Engineered and assembled in the U.S.A.
By the makers of the professional
Chef’sChoice® Diamond Hone®
Knife Sharpeners, sold worldwide.

EdgeCraft Corporation
825 Southwood Road
Avondale, PA 19311 U.S.A.

 [phone] • [phone]

Chef’sChoice® and EdgeCraft® are registered trademarks of the
EdgeCraft Corporation.

This product may be covered by one or more EdgeCraft patents
and/or patents pending as marked on the product.

© 2013 EdgeCraft Corporation D13 M641900

www.chefschoice.com