xTool Selected Square K9 Crystal

About this product

Key Features

Premium K9 optical crystal. A clear K9 crystal blank gives engraving and inner-engraving work a refined, glass-like presentation.

Compatible with the xTool F2 Ultra UV. Supports UV engraving, UV embossing, and inner engraving workflows for square K9 crystal customization.

Made for UV engraving. Engrave the surface, build raised UV embossing, or place details inside the block with inner engraving.

Dimensional crystal results. The thick square form gives photos, text, logos, and 3D-style artwork a display-ready sense of depth.

Perfect for keepsake gifts, anniversary and memorial pieces, pet portraits, newborn mementos, desk décor, corporate awards, and small-batch custom merchandise.

Good to Know

Clean the processing surface first. Wipe the glass with alcohol before processing; dust, fingerprints, or oil may reduce engraving consistency.

Confirm orientation before processing. Check the artwork direction against the square face and intended viewing side to avoid inverted or misplaced designs.

Add color with Glass Painting Pens. Color in the engraving, then wipe the excess off the smooth glass. The pigment stays in the etch for a bolder finish.

More about K9 crystal. K9 is purer than regular soda-lime glass — no green tint, virtually no bubbles — which is what lets it hold a clean internal engraving. See Regular Glass vs. K5 vs. K9 Crystal.