Festool Beech DOMINO Tenons D 12x140/90 BUFor DF 700 Includes Qty. in pack: 90. 00 Pieces 12mm x 140mm beech tenons, includes 90 pieces. Rotation proof, solid wood DOMINO Tenons fit precisely in the mortise created by the tool, with glue expansion slots designed into their surface to ensure a solid, generations lasting joint. Made from solid hardwood stock, DOMINO Beech tenons form the basis for strong joints that will last a lifetime and beyond. All natural, solid Beech hardwood for strength