Industrial Quality Signmaking, Lettering, V Groove Miter Fold are made by Amana Tool, the leading manufacturers of high-quality wood-cutting tools. Amana Tool 45792-M V-Groove 90 Deg. Folding for Aluminum Composite Material (ACM) Panels Like Alucobond, Dibond, 0.090 Tip Cut Width x 3/8 CH x 1/2 D x 6mm SHK Carbide Tipped Router Bit is designedfor shaping Aluminum Composite Materials (ACM).Routing V-shaped grooves, whereby the aluminum cover and a part of the polyethylene core is removed, allows folding/creasing the remaining material by hand. Excellent for cutting: Aluminum, Clay, Zinc & Wood Composite Panels, Aluminium Composite Materials (ACM), Aluminium Composite Panel (ACP), ALPOLIC Copper Composite Material (CCM), Alucobond, Alupanel, Coroplast, Dibond, Durabond, e-panel, Etalbond, Phenolics, Plastic/Acrylic, Plexiglass, Titanium Composite Material (TCM), Wood. SPECIFICATIONS: Diameter (D): 1/2; Angle (a): 90; Cutting Height (B): 3/8; Shank (d): 6mm; Overall Length (L): 2; B1: 13/64; Type: Carbide Tipped V-Groove; Max RPM: 35,000; Flutes: 2; D1: 0.090"; a1: 45.