CNC Spoilboard Surfacing Router Bit
"How This Bit Saved My $22k CNC Cabinet Production Run" As a WMIA-certified CNC technician with 14 years in high-volume cabinet shops, I've seen "premium" bits scorch MDF in three passes. When CabinetMaker Magazine surveyed 112 shops, 79% blamed surfacing bits for $18k/year in spoilboard replacement. After laser-interferometer tests on phenolic and MDF, here's what your dial indicator reveals. Geometry That Beats Thermal Death Critical Spec Hooked on Wood HSS-PRO Amana 61420 Winner Cutting Diameter 2.5" ±0.001" 2.5" ±0.005" HoW ✅ Body Composition Micrograin carbide Standard carbide HoW ✅ Flute Count 5 helical 4 straight HoW ✅ Shear Angle 35° 28° HoW ✅ Runout Tolerance 0.0003" TIR 0.002" HoW ✅ Gullet Depth 0.28" 0.18" HoW ✅ Secret Weapon: HSS-PRO's TiSiN-plated body reduces friction temperature by 194°F (Wood Science Journal, 2022) Production Torture Tests Test 1: Phenolic-Core Spoilboard (45-sheet run) Material: 1.5" Ultralight MDF, resin-infused Cut: 0.03" DOC