Ultra-Shear Variable Helix Router Bits: Precision and Control for Mortise & Tenon Joinery
Take your mortise and tenon joinery to the next level with Ultra-Shear Variable Helix Joinery Router Bits. Designed for smooth plunging, chatter-free operation, and precision cuts, these bits outperform standard spirals, delivering flawless results. Works with PantoRouter, Multi-Router or a plunge router with a fence system.
The Ultra-Shear Variable Helix Advantage
Dramatically Improved Control – The unique helix geometry starts with a shallow angle at the tip for steady, controlled plunging and increases toward the shank for efficient chip evacuation.
Greatly Reduced Chatter – Perfect for deep mortises and long tenons, eliminating vibration and producing crisp, clean cuts.
Crisp Entry Points & Satin-Smooth Sidewalls – Achieve on-dimension joinery with clean, sharp edges and flawless surface finishes.
Designed for Superior Joinery Performance
Optimized Diameters – Matched to common mortise and tenon sizes for furniture construction.
Extra-Long Cut Lengths – Reach deep mortises and create through tenons with ease.
Solid Micro-Grain Carbide Construction – Engineered and precision-ground in Strongsville, Ohio, USA for exceptional durability and long tool life.
Perfect for Any Router Setup
Ideal for Joinery Machines – Compatible with PantoRouter and Multi-Router, precision joinery systems will benefit from the chatter-free operation and consistent dimensional accuracy.
Plunge Router Friendly – Even without a dedicated joinery machine, these bits deliver better feed control, superior chip evacuation, and smoother cuts when using a plunge router and fence system.
American Made Quality
Like all Ultra-Shear Router Bits, the Variable Helix Router Bit are made in Strongsville, Ohio.