[Imported Material] Geometric Rocket Utility Knife Lignum Vitae OLFA SAC-1
01 / AWARENESS
The utility knife stays the same — what changes is the part in your hand
A utility knife is one of the tools picked up most often on a desk. We kept OLFA's original blade mechanism and replaced only the part your palm touches with wood.
Specifically: the body is an OLFA SAC-1 using OLFA 30° blades; the grips on both sides are imported lignum vitae, CNC-cut into the faceted shape of a geometric rocket. The whole knife is about 138 × 21 × 12.5 mm and weighs about 30 g.

Front | OLFA SAC-1 body

Back | Lignum vitae grip
02 / MATERIAL
Imported lignum vitae grips
Lignum vitae is an imported hardwood, dense and naturally oily, with the warmth that only wood has in the hand.
About the grain
• Each handle comes from a different piece of wood; differences come from the sawing direction (quarter-sawn / flat-sawn), growth ring width, and whether it was cut from heartwood or sapwood.
• Knots and grain variation are features of natural wood, not defects; product photos show actual pieces for reference.
03 / CRAFT
CNC-cut, sanded in two rounds
WKidea uses only CNC subtractive machining, cutting the geometric rocket shape of the grips from a solid block of wood, with no injection molding.
This product is priced at NT$800 and made with WKidea's standard craft: two rounds of sanding, with alcohol sprayed at the end of the first round so the wood fibers flattened by sanding stand back up, making the second round more even.
04 / HOW TO USE
How to use
01 Push the slider on the body to extend the blade, only as far as you need.
02 When you are done, retract the blade completely.
03 When the blade gets dull, buy SAB-10B (professional) or DKB-5 (economy) replacement blades and change them the standard OLFA way.
04 When not in use, store it in the black paper box; the insert holds the knife in place.
Blades and replacements
• One OLFA 30° blade is installed in the body at shipping; no extra spare blade is included.
• For replacements, choose OLFA 30° blades: SAB-10B (professional) or DKB-5 (economy).

Storage | Insert holds the knife

Packaging | Windowed lid
Packaging photos show the Taiwan incense cedar version; all WKidea utility knife models use the same black paper box.
05 / CARE
Simple natural beeswax care
Retract the blade before care:
01 For everyday care, simply wipe the handle with a dry cloth.
02 Now and then, apply a thin coat of natural beeswax, then wipe off the excess with a dry cloth.
03 Avoid soaking it in water or leaving it in direct sunlight for long periods.
Beeswax for care: WKidea natural beeswax. Avoid long sun exposure and humid storage.
06 / FAQ
FAQ
Q: What blades does this utility knife use?
OLFA 30° blades, with an OLFA SAC-1 body. Replacement blades: SAB-10B (professional) or DKB-5 (economy).
Q: Is a spare blade included?
No. One OLFA 30° blade is installed in the body at shipping; no extra spare blade is included.
Q: What are the dimensions and weight?
About 138 × 21 × 12.5 mm, weighing about 30 g.
Q: Can left-handed people use it?
Yes. The geometric rocket handle works in either hand.
Q: How soon does it ship?
It is in stock and ships 2–3 business days after you order.
Q: Will the wood grain look exactly like the photos?
No. Each grip comes from a different piece of wood, so grain and color vary; the photos are for reference only.
Q: How is it packaged?
In a black paper box, with an insert that holds the knife in place.
07 / CUSTOMIZE
Bulk orders and customization
For corporate gifts, group orders or other needs, feel free to contact us.
1-on-1 consultation
• Line: @wkidea
• Email: service@wkidea.com
• We'll get back to you as soon as possible.
08 / WKidea
Practice makes perfect
WKidea approaches woodworking in the spirit of the old oil seller's tale: no shortcuts, only repeated practice. We use only CNC subtractive machining, and our founder Willy Kang has been an officially certified Autodesk Fusion instructor since 2017.