Avoid the possibility of joint failure in your chairs, stools, or log furniture with this clever expanding cutter and wedge-ring system. The high-speed steel Tenon-Lok cutter features spring-action blades that flare out at the base, creating a dovetail-shaped round mortise. The sharpened tapered steel wedge-ring then sits in the flared mortise, expanding the tenon with minimal splitting as it gets driven into place. The resulting joint will never come apart, and is completely immune to weather related expansion and contraction. Ideal for repairs or original construction, the Tenon-Lok system requires both a cutter and a matching wedge ring (Rockler# 39604, sold separately in convenient multi-packs). Every Tenon-Lok cutter includes a steel Setter Guide to create an impression on the base of the mortise for the wedge ring to rest in. Using the Tenon-Lok system: 1. Drill a standard round mortise with a forstner bit or another bit of your choice. 2. Chuck the same diamete (more…)