The CMT 812.140.11 Straight Bit Long Series is a professional-grade 14mm diameter routing bit engineered for deep, clean cuts in demanding woodworking applications. Built by CMT with a 2-flute micrograin carbide design and right-hand rotation, this long-series straight router bit delivers smooth, precise results whether you are cutting dadoes, grooves, or deep panel joints. The extended 2-3/8" total length and 1-1/4" cutting height make it the right tool when standard-length bits simply cannot reach, and the 1/4" shank fits a wide range of handheld routers and router tables.

Key Features

• Micrograin Carbide Cutters with Special Fatigue Proof Steel Body - the combination of hard-wearing carbide tips and a flexible, fatigue-resistant steel body means the bit can handle heavy, sustained cuts without deflection or tip failure, giving you consistent results across an entire workday.
• Double-Faced Cutting Edges (2-Flute Design) - two razor-sharp cutting faces work together to shear material cleanly on both passes, reducing tearout and leaving a smooth, finished edge that often requires little or no sanding.
• Exceptional Chip Ejection - the flute geometry is optimized to clear chips rapidly away from the cutting zone, which means less heat buildup, a cleaner cut path, and more consistent performance throughout deeper passes.
• CMT Orange Shield Non-Stick PTFE Coating - the trademark orange PTFE surface protection actively resists resin, pitch, and adhesive buildup that would otherwise slow the bit down, reduce cut quality, or require frequent cleaning mid-project.
• Long Series Length (1-1/4" Cutting Height, 2-3/8" Total Length) - the extended reach allows you to rout deeper grooves and dadoes in a single pass that would require multiple setups or passes with a standard-length bit, saving time and improving accuracy.
• Right-Hand Rotation - matches the standard spindle direction of virtually all handheld routers, router tables, and CNC routing machines, so no special setup is required.
• 1/4" Shank - a widely compatible collet size that fits the majority of consumer and professional routers, making this bit a versatile addition to any woodworking shop.

Why This Product

• When a standard-length straight bit cannot reach the full depth of a dado, groove, or panel joint, the 1-1/4" cutting height of this long-series bit gives you the extra reach to complete the cut cleanly in fewer passes.
• The micrograin carbide tips and fatigue-proof steel construction are designed to withstand heavy workloads, meaning the bit stays sharp and accurate longer - reducing downtime for bit changes and sharpening on production or high-volume projects.
• The CMT Orange Shield PTFE coating addresses one of the most common problems with router bits in hardwood and resinous wood work - sticky buildup that degrades cut quality. The coating keeps the bit cleaner between uses, extending its effective working life.
• With a 1/4" shank, this 14mm diameter bit bridges the gap between narrow slot cutters and larger panel-routing bits, offering a specific cutting diameter useful for precision joinery, template routing, and groove work that demands an exact fit.

Specifications

• Manufacturer Part Number: 812.140.11
• Brand: CMT Orange Tools
• Diameter: 14mm
• Cutting Height: 1-1/4"
• Total Length: 2-3/8"
• Shank: 1/4"
• Number of Teeth: 2
• Material: HW (Micrograin Carbide)
• Rotation: Right-Hand (RH)
• Product Type: Straight Bit, Long Series

Approved Applications

• Deep straight cuts requiring extended reach beyond standard-length bits
• Dadoes and grooves in solid wood, plywood, and sheet goods
• Template routing where consistent depth and clean sidewalls are critical
• Panel joinery requiring precise, repeatable slot dimensions
• Routing in solid hardwood, softwood, plywood, MDF, chipboard, melamine, laminates, and plastic