More from xTool →xTool Selected Square K9 Crystal
$18.99–$35.99
In stock at xtool.com
xTool Selected Square K9 Crystal is an optical crystal block for UV engraving, UV embossing and inner engraving on the xTool F2 Ultra UV. It comes in three sizes from 3.15 x 3.15 x 0.98 inches up to 3.94 x 3.94 x 2.36 inches. K9 is clearer than standard glass, which makes it a common base for photo keepsakes, awards and memorial pieces.
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Highlights
- K9 optical crystal with no green tint
- Three sizes: 7.5x7.5x5cm, 8x8x2.5cm, 10x10x6cm
- Supports surface UV engraving, UV embossing and inner engraving
- Compatible with xTool F2 Ultra UV
- Can be color-filled with glass painting pens
Best for
F2 Ultra UV owners making photo crystals, awards or keepsake gifts.
Things to consider
- Inner engraving requires a compatible UV laser; this is a blank, not a finished piece.
- Clean with alcohol before processing for consistent results.
- Quantity per order is not stated; it appears to be a single block.
Key specs
| Price | $18.99–$35.99 |
|---|---|
| Material | K9 optical crystal |
| Sizes | 2.95x2.95x1.97 in.; 3.15x3.15x0.98 in.; 3.94x3.94x2.36 in. |
| Compatible with | xTool F2 Ultra UV |
| Processes | UV engraving, UV embossing, inner engraving |
Our take
A quality crystal blank for UV laser keepsakes, priced reasonably for gift work.
xTool Selected Square K9 Crystal at a glance
| Brand | xTool |
|---|---|
| Price | $18.99–$35.99 |
| Type | Art & Crafting Materials |
| Options | 3 sizes |
| Availability | In stock at xtool.com |
| Returns | Returns are accepted within 30 days of delivery and you pay return shipping. No service… |
Price check
At $18.99, the xTool Selected Square K9 Crystal is mid-range for xTool, whose 885 listed products run $0.03 to $21,599.
Similar items from other brands we track run $35.99 to $99.99.
Frequently asked questions
Can I engrave K9 crystal with a diode laser?
The listing names the xTool F2 Ultra UV as compatible. Other lasers are not mentioned.
What sizes are available?
Three: 7.5x7.5x5cm, 8x8x2.5cm and 10x10x6cm.
How do I prep the crystal?
Wipe it with alcohol to remove dust and fingerprints, and check artwork orientation first.
How much is the xTool Selected Square K9 Crystal?
xTool lists it at $18.99–$35.99 on xtool.com. We refresh prices throughout the day, but always confirm the final price at checkout.
What is xTool's return policy?
Returns are accepted within 30 days of delivery and you pay return shipping. No service fee applies in the first 14 days; from day 15 to 30 a non-defective return costs 10% to 30% of the order total, machines must have lasered under 50 times, and separately bought materials and filters are not returnable.
How long does xTool take to ship?
Machines and refurbished machines ship free in the US; accessories and materials are a $10 flat fee under $89 and free at $89 or more. Standard US delivery is listed as 1 to 3 business days, with paid 3rd-day options for machines.
Does the xTool Selected Square K9 Crystal come with a warranty?
xTool's published warranty terms: xTool offers a limited warranty with free repair or replacement for problems within the warranty period, starting with remote troubleshooting by email to Support@xtool.com. Misuse, unauthorized repairs and third-party parts are excluded.
What options does the xTool Selected Square K9 Crystal come in?
Size: 2.95" x 2.95" x 1.97" / 7.5cm x 7.5cm x 5cm, 3.15" x 3.15" x 0.98" / 8cm x 8cm x 2.5cm, 3.94" × 3.94" × 2.36" / 10cm × 10cm × 6cm.
Where can I buy the xTool Selected Square K9 Crystal?
The xTool Selected Square K9 Crystal is sold directly by xTool on xtool.com. The Shop now button on this page goes straight to the product there.
Is the xTool Selected Square K9 Crystal in stock?
Yes. xTool lists it as in stock on xtool.com as of our latest check. Stock and prices refresh throughout the day.
Is xTool a legit store?
xTool is a strong pick if you want a laser engraver or printer backed by a big, well-documented ecosystem of jigs, blanks and materials sold in the same store. Skip it if you expect free, no-questions returns: after day 14 an unwanted machine costs 10% to 30% of the order total to send back. Read the refund fee table before you buy any machine. Our full xTool review covers shipping, returns and what to check before ordering.
Is the xTool Selected Square K9 Crystal expensive?
At $18.99 it is mid-range for xTool ($0.03 to $21,599 across 885 products), and similar items from other brands run $35.99 to $99.99.
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