The CMT 190.506.11 Solid Carbide Up/Downcut Spiral Bit is a compression-style router cutter engineered for clean, chip-free results on both faces of a workpiece in a single pass. Built entirely from solid micrograin carbide and featuring a 2+2 tooth up/downcut geometry, this right-hand spiral bit is purpose-built for CNC through-cuts in plywood, MDF, laminates, melamine, and solid wood where surface quality on top and bottom matters equally. With a 1/2 in. diameter, 1 in. 1/8 cutting height, and a 1/2 in. shank, it fits standard CNC routing machines and router tables without adapters or compromises.

Key Features

• Solid Carbide Construction - manufactured entirely from premium micrograin carbide rather than carbide-tipped steel, delivering greater wear resistance and supporting more resharpenings over the life of the bit so it stays in service longer between replacements.
• Up/Downcut Compression Geometry (2+2 Teeth) - the upcut flutes pull fibers upward from below while the downcut flutes press fibers downward from above, compressing the workpiece between both cutting actions to eliminate tearout and fraying on both faces simultaneously - ideal for veneered plywood, melamine, and double-sided laminate panels.
• CMT Orange Shield Non-Stick Coating - prevents heat buildup at the cutting edge, reduces pitch and resin adhesion, and protects the carbide body against corrosion, extending tool life especially in resinous or adhesive-coated sheet goods.
• 1/2 in. Shank Diameter - the full 1/2 in. shank provides a rigid, low-vibration connection in standard CNC collets and router table collets, contributing to straighter cuts and a finer finished surface.
• Right-Hand Rotation - compatible with the vast majority of CNC routing machines, router tables, and handheld routers without any special configuration.
• 3 in. Total Length with 1 in. 1/8 Cutting Height - the extended total length provides collet clearance for deeper workpiece setups, while the 1 in. 1/8 cutting depth handles typical sheet good thicknesses in a single pass.

Why This Product

• When cutting through veneered plywood, melamine, or laminated panels on a CNC, conventional upcut bits tear the top face while downcut bits tear the bottom face - this bit's 2+2 compression geometry addresses both problems at once, producing clean edges top and bottom in a single through-cut pass.
• Solid carbide construction rather than carbide-tipped design means the entire cutting body resists wear uniformly, giving CNC operators longer intervals between tool changes and more resharpening cycles before the bit needs replacement.
• The 1/2 in. shank and 3 in. overall length suit a wide range of CNC routing setups where a full-size collet is preferred for rigidity, reducing chatter that degrades edge quality in demanding production environments.
• The Orange Shield non-stick coating specifically benefits operators cutting MDF, chipboard, and adhesive-coated materials that are known to deposit resin and dust on cutting edges quickly - keeping the bit cleaner between passes and maintaining cut quality longer.

Specifications

• Manufacturer Part Number: 190.506.11
• Brand: CMT Orange Tools
• Product Type: Up/Downcut Spiral Router Bit
• Blade Material: Solid Carbide (HWM)
• Diameter: 1/2 in.
• Cutting Height: 1 1/8 in.
• Cutting Height (I1): 15/32 in.
• Total Length: 3 in.
• Shank: 1/2 in.
• Number of Teeth: 2 + 2
• Rotation: Right-Hand (RH)

Approved Applications

• CNC Routing
• Through-Cuts in Plywood and MDF
• Two-Face Finish Cuts in Laminates and Melamine
• Router Table Operations
• Handheld Router Operations
• Cutting in Solid Hardwood and Softwood
• Cutting in Chipboard and Plastic