Flawless Pattern Routing Starts Here. When you're pattern routing 2" thick stock, not just any router bit will do. Ultra-Shear’s 3/4" Compression Pattern Bits are built for ultra-clean performance—top and bottom. ✅ Compression geometry eliminates tear-out on both top and bottom surfaces ✅ Shank-mounted double bearings = zero mismatch between pattern and finished edge ✅ Perfect for routing production-designed patterns ✅ Clean plunge cuts, dadoes, grooves, and rabbets in hardwood, plywood, or MDF