The CMT 812.595.11 Straight Bit Long Series is a precision-engineered router bit designed for deep straight cuts, dadoes, grooves, and template routing in a wide range of wood and wood-composite materials. Built with micrograin carbide cutters and a double-flute design, this long-series straight bit delivers smooth, clean edges even under heavy cutting loads - making it a reliable choice for both handheld router work and router table setups. The 3/8 in. cutting diameter paired with a 1/4 in. longer cutting height than standard-series bits gives woodworkers the reach they need for deeper mortises, panel joinery, and precise groove work in solid hardwood, plywood, MDF, laminates, and melamine.

Key Features

• Micrograin Carbide Cutters on Special Fatigue Proof Steel Bodies - the combination of high-density carbide and a reinforced steel body means the bit holds its edge longer under heavy workloads, reducing the need for frequent resharpening or replacement.
• Double-Faced (2-Flute) Cutter Design - two cutting edges work together for balanced chip removal and a consistently smooth, precise cut surface on every pass.
• Exceptional Chip Ejection - the flute geometry actively clears waste material away from the cutting zone, keeping the cut path clean and reducing heat buildup during extended operations.
• CMT Orange Non-Stick PTFE Coating - the trademarked orange surface treatment resists resin, pitch, and other residue buildup, keeping the bit cleaner during use and protecting the body from corrosion between uses.
• Long Series Cutting Height of 1 1/4 in. - the extended flute length provides deeper cutting capacity than a standard straight bit of the same diameter, enabling single-pass dadoes and grooves in thicker stock.
• 1/2 in. Shank - the larger shank diameter provides greater mass and a more secure collet grip, which reduces vibration and deflection during demanding cuts.
• Right-Hand Rotation - compatible with all standard right-hand router collets used in handheld routers, router tables, and CNC routing machines.

Why This Product

• The long-series flute length (1 1/4 in. cutting height) lets woodworkers cut full-depth dadoes and grooves in thicker panels without multiple passes, saving setup time and improving cut consistency.
• The PTFE non-stick orange coating actively resists pitch and resin adhesion - a direct advantage when routing resinous hardwoods or melamine-faced panels where residue buildup commonly causes burn marks and rough edges.
• The 1/2 in. shank is the preferred choice for router table and CNC use because the larger shank provides greater rigidity, reducing chatter and deflection that can compromise groove accuracy in hardwood and composite panel work.
• The micrograin carbide cutting edges on a fatigue-proof steel body are engineered to withstand sustained cutting loads, making this bit well suited to production environments and repeated use across solid hardwood, softwood, plywood, MDF, chipboard, and plastics.

Specifications

• Manufacturer Part Number: 812.595.11
• Brand: CMT Orange Tools
• Diameter: 3/8 in.
• Cutting Height: 1 1/4 in.
• Total Length: 2 7/8 in.
• Shank: 1/2 in.
• Number of Teeth: 2
• Blade Material: HW (Micrograin Carbide)
• Rotation: Right-Hand (RH)
• Product Type: Straight Bit, Long Series

Approved Applications

• Deep straight cuts in solid hardwood and softwood
• Dadoes and grooves in plywood, MDF, and chipboard
• Template routing with a flush-trim or guide bushing setup
• Panel joinery and cabinet component milling
• Routing laminates, melamine, and plastic sheet materials