Wedges / V nails
Wedges also known as v-nails, join and hold the mitred corners of a picture frame together. For best results, apply a dab of wood glue to the mitred surface. Available in a choice of wedge sizes and wood-types.
Use AL wedges for Alfamacchine and A+ underpinners and UNI (universal) wedges for Cassese machines and other brands including Morso, Taurus, Brevetti, Euro, Framers Corner, Pistorius and Ortiguil.
For Cassese cartridge underpinners, use UK Premier UNI (Universal) wedges in combination with UK Premier refillable metal cartridges or your empty plastic cartridges. Plastic cartridges should be refilled before empty to avoid machine jamming.