Multi-Profile Carbide Insert Heads is a great way to add consistency and speed to your tongue & groove and cope & stick patterns. Diposable C3 carbide inserts mount on backer plates in a very quick and self centering alignment system. Any custom pattern that fits in the profile area ( 1 1/8" x 1/2" ) can be made for these heads at affordable prices. We also stock T&G knives on the shelf ready to send out. Custom patterns can be made in about 2 weeks. Customs heads with larger cut areas can be made as well.