Edgecraft Choice 312 User Manual
MODEL 312
InstructIOns
Diamond UltraHone® Sharpener
© 2014 EdgeCraft Corp.
Read these instructions before use.
It is essential that you follow these
instructions to achieve optimum results.
IMPORTANT SAFEGUARDS
When using electrical appliances, basic safety precautions should always be
followed including the following:
1. Read all instructions. Every user should read this manual.
2. To protect against electrical hazards do not immerse the Chef’sChoice
or other liquid.
3. Make sure that only clean knife blades are inserted in the Model 312.
4. Unplug from outlet when not in use, before putting on or taking off parts, and before cleaning.
5. Avoid contacting moving parts.
6. Do not operate any appliance with a damaged cord or plug or after the appliance
malfunctions, or is dropped or damaged in any manner.
U.S. customers: You may return your sharpener to EdgeCraft’s factory for service where the
cost of repair or electrical or mechanical adjustment can be estimated. When the electrical
cord on this appliance is damaged, it must be replaced by the Chef’sChoice distributor or
other qualified service to avoid the danger of electrical shock.
Outside U.S.: Please return your sharpener to your local distributor where the cost of repair
or electrical or mechanical adjustment can be estimated. If the supply cord of this appliance
is damaged, it must be replaced by a repair facility appointed by the manufacturer because
special tools are required. Please consult your Chef’sChoice distributor.
7. CAUTION! This appliance may be fitted with a polarized plug (one blade is wider than the
other). To reduce the risk of electric shock, this plug will fit in a polarized outlet only one
way. If the plug does not fit fully in the outlet, reverse the plug. If it still does not fit, contact a
qualified electrician. Do not modify the plug in anyway.
8. The use of attachments not recommended or sold by EdgeCraft Corporation may cause fire,
electric shock, or injury.
9. The Chef’sChoice
selected sports knives. Do not attempt to sharpen scissors, ax blades or any blade that does
not fit freely in the slots.
10. Do not let the cord hang over edge of table or counter or touch hot surfaces.
11. When in the “ON” position (Red flash on switch is exposed when “ON”) the Chef’sChoice
sharpener should always be on a stable countertop or table.
12. WARNING: KNIVES PROPERLY SHARPENED ON YOUR CHEF’SCHOICE
THAN YOU EXPECT. TO AVOID INJURY USE AND HANDLE THEM WITH EXTREME CARE. DO
NOT CUT TOWARD ANY PART OF YOUR FINGERS, HAND OR BODY. DO NOT RUN FINGER
ALONG EDGE. STORE IN A SAFE MANNER.
13. Do not use outdoors.
14. Close supervision is necessary when any appliance is used by or near children or the infirm.
15. Do not use honing oils, water, or any other lubricant with the Model 312.
16. For household use only.
17.
SAVE THESE INSTRUCTIONS.
®
Model 312 is designed to sharpen household knives, pocket knives and
®
Model 312 in water
®
WILL BE SHARPER
®
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YOU MADE
A GOOD
CHOICE
Professional chefs and serious cooks worldwide rely on Chef’sChoice®
®
Diamond Hone
knives at better than factory sharpness and durability. Chef’sChoice
sharpeners are known for their consistent foolproof performance, ease
of use, and ability to create ultra sharp edges on quality cutlery with
minimal removal of metal.
The Chef’sChoice
developed by Chef’sChoice
ultra hone your knife edge to astonishing sharpness. You will find it fast
and simple to use. The two stage design of Model 312 sharpens/hones
the edge first with fine diamonds to create a first bevel before honing
with ultrafine diamonds at a slightly larger angle to develop an unusually sharp but durable edge. Diamonds, the hardest known materials
can sharpen knives made of any metal including the hardest carbon,
stainless and super alloy steels.
You will find renewed joy in using your favorite knives once sharpened
in the Model 312. The edges will be sharper and they will stay sharp
longer than conventional or hollow ground edges. Remember a sharp
knife is a safer knife because it requires less effort to cut or slice. The
Model 312 will reward you with years of added culinary pleasure and
bring extra appeal to each gourment creation. Enjoy.
sharpeners to maintain the edges of their favorite
®
®
Model 312 incorporates the latest technology
®
based on micron sized diamonds to
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UNDERSTANDING THE MODEL 312
DIAMOND ULTRAHONE® SHARPENER
This unique Chef’sChoice® Diamond UltraHone® Sharpener is designed to sharpen knives with
either straight or serrated edges. This two (2) stage sharpener has two precision sharpening /
honing stages, one with fine and the other with ultrafine 100% diamond abrasive. This combination can be used to create either an ultra sharp, smooth faceted edge for effortless cutting and
presentations or one with a selected amount of residual “bite”.
The sharpening and honing actions are controlled by using precisely angled guides for the blade
and precisely matched conically surfaced abrasive disks. The sharpening angle is slightly larger
in Stage 2 than in Stage 1. The sharpening rate is carefully controlled by the size of diamonds
used and by unique internal springs that limit the amount of pressure that can be applied to the
edge by the abrasive disks.
Fine diamond-coated conical disks in Stage 1 create microgrooves along the facets on each
side of the edge establishing the first angled bevel of the edge. In Stage 2 precision disks coated
with micron sized diamonds gently hone and polish the facets immediately adjacent to the edge
creating a microbevel along a microscopically thin straight and polished edge. The honing action simultaneously polishes and sharpens the boundaries of those microgrooves created by the
diamond abrasives in Stage 1 adjacent to the edge until they become sharp micro flutes that will
assist the cutting action with “difficult to cut” materials.
This unique two stage design gives you an extremely sharp edge and because of the second
angle microbevel, you will notice that your knives stay sharp longer than those sharpened by
conventional means.
The following sections describe the general procedures for optimal sharpening. One of the important advantages of using the Model 312 is that you can hone and polish your knives to razor
sharp edges as often as needed and yet experience little knife wear compared to older sharpening methods. Resharpening can commonly be done by using just the gentle ultra honing action
of Stage 2. (See Resharpening Section).
Each sharpening Stage is equipped with gray flexible plastic springs that are positioned over
the sharpening disks (see Figure 1) to hold the face of your knife securely against the precision
guides in the right and left slots of each stage during sharpening.
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