Carbide I believe. I used it to cut holes in 3/4" thick plywood with a corn hole board jig. One pass with my Porter Cable (Heavy Duty) router model. This bit cuts with minimal effort. I have 4-6" diameter holes drilled and as expected no signs of wear Good cut This is my second Freud cutter Small sample but I think they have quality carbide Better than expected so far.
Enhance Woodworking Precision with Roundover Milling Rounding Edge Forming Tool
11 Review
Wi-Fi router Keenetic Extra (KN-1713), white/grey
19 Review
Ultimate Guide to KOWOOD Router Pieces for Woodwork Beginners
11 Review
Premium Tongue & Groove Milling π§ Cutting Tools by KOWOOD: Precision and Performance Unleashed
10 Review
πͺ Bi-Metal Cutting Blades: Imachinist S933414 - Enhancing Precision and Performance
10 Review
High-Performance Bosch BS80 6W Bandsaw - 80 Inch 4 Inch Blades
11 Review
πͺ Durable DEWALT DW3986C Portable Blade 3 Pack for Efficient Cutting
10 Review
POWERTEC 62-Inch 8-Inch Blade - Model 13132X
12 Review