[Flush Trim Router Bit Set]1/2" Bearing Diameter, 1/4" Universal Shank, Cutting length: 10mm/20mm/25mm/38mm. Widely use on hand-held and table-mounted portable routers. [High Hardness Tip]Made of high quality alloy steel, the blade are sharp and smooth. With heat treatment heat-resistant Teflon Coating, which prevents build-up of sawdust and resin. Durable and not easy to be broken! [Anti-Kickback]Solid hardened steel bodies with Anti-Kickback design provides increased strength and utmost resistance. Suitable for trimming, three-dimensional clearance angle, slotted [Woodworking Milling Tools]Flush Trim Router Bit with bearing is perfect for all your large stock trim applications. They're great helpers for decorative wood processing [Wide Usage] Perfect for wood, MDF, particleboard, plywood and other compact panel. Product description 4pcs 1/4'' Shank Flush Trim Pattern Router Bit Set with Bearing Template Router Cutter, 1/2'' Cutting Diameter Woodworking Milling Tools [Specifications] Material: Alloy Blade+Carbon Steel Handle Shank Diameter: 1/4 Inch Bearing Diameter: 1/2 Inch Cutting Length: 10mm / 20mm / 25mm / 38mm Overall Length: 56mm / 65mm / 70 mm / 84mm [Features] 1. Sharp and durable 2. High hardness, good wear resistance, greatly improve the life 3. Cutting sharp, smooth rotation, brisk operation 4. Clean cutting and neat surface without glitches 5. The main function is trimming, three-dimensional clearance angle, slotted 6. Perfect for wood, MDF, particleboard, plywood and other compact panel 7. Applicable models:the engraving machine,trimmer [NOTE] Wear good eye protection during operation to avoid use on iron-containing metal or non-wood materials such as steel, iron, sand and stone [Package includes] 4 x 1/4" Shank Router Bit