CMT Straight Bit Short Series - 12mm Diameter, 1/4" Shank is a compact, high-performance router bit engineered for precision straight cutting in wood, plywood, composites, and a wide range of other materials. Built by CMT with a double-edged micrograin carbide cutting head and a fatigue-proof steel body, this short-series bit is designed to deliver clean dadoes, grooves, rabbets, and mortises with consistent accuracy whether you are running it on a handheld router, router table, or CNC routing machine. The orange non-stick coating and rigorous quality testing make it a reliable choice for both high-volume production shops and exacting woodworking projects.

Key Features

• Micrograin Carbide Cutting Edges (HW Material): The two cutting edges are ground from micrograin carbide, which holds a sharper edge longer than standard carbide - meaning fewer bit changes, less downtime, and cleaner cuts over an extended service life.
• Special Fatigue-Proof Steel Body: The body is machined from special fatigue-proof steel that resists flex and stress fractures even under heavy, repetitive workloads - giving you confidence when pushing through dense hardwoods or engineered composites.
• CMT Orange Non-Stick Coating (P.T.F.E.): The trademark orange P.T.F.E. surface treatment prevents resin, pitch, and other residue from bonding to the bit - reducing heat buildup, simplifying cleanup, and protecting the bit against corrosion between uses.
• 2-Flute Design: Two cutting edges provide a balance of material removal rate and surface finish quality - ideal for routing dadoes, grooves, and mortises where both speed and clean walls matter.
• Short Series Profile: The compact 2" total length and 3/4" cutting height put the cutting edges closer to the collet, reducing vibration and improving stability - especially beneficial on router tables and CNC setups where runout must be minimized.
• Strict Quality Testing for Balance and Concentricity: Every bit undergoes rigorous testing for cutting tolerance, balance, and concentricity before it leaves the factory - so you get predictable, repeatable performance cut after cut.
• 1/4" Shank: The 1/4" shank fits the most common router collet size, making this bit compatible with a wide variety of handheld routers and router tables without requiring adapter bushings.
• Right-Hand Rotation (RH): Designed for standard right-hand rotation, matching the spindle direction of virtually all conventional routers and CNC routing machines.

Why This Product

• The micrograin carbide construction paired with the fatigue-proof steel body is built to handle industrial-scale production volumes in plywood, composites, and natural woods - making it appropriate for shops that need a bit that keeps up with heavy use without premature wear.
• The orange P.T.F.E. non-stick coating directly addresses one of the most common frustrations with router bits - resin and pitch buildup that degrades cut quality and shortens bit life - so the bit stays cleaner and cuts truer over a longer working life.
• The short-series geometry reduces deflection and vibration compared to longer bit profiles, which translates to straighter groove walls and tighter dimensional tolerances when routing dadoes and mortises in hardwood or engineered sheet goods.
• Because every unit is individually tested for balance and concentricity, this bit is a dependable choice when routing operations demand consistent results across multiple workpieces or long production runs.

Specifications

• Manufacturer Part Number: 811.120.11
• Brand: CMT Orange Tools
• Diameter: 12mm
• Cutting Height: 3/4"
• Total Length: 2"
• Shank: 1/4"
• Number of Teeth: 2
• Material: HW (Micrograin Carbide)
• Rotation: RH (Right-Hand)
• Product Type: Straight Bit Short Series

Approved Applications

• Straight cuts including dadoes, grooves, and rabbets
• Mortising
• Template routing
• Plywood joinery
• Routing of composites and engineered sheet goods
• Industrial-scale production routing in natural woods, plywood, and composite materials