CMT Rail and Stile Bit Set - Profile A by CMT is a matched two-piece router bit set engineered to produce clean, precise male-female frame joints for cabinet doors, frame-and-panel doors, and similar woodworking applications. With a 1/2 in. shank and hardwood-grade carbide tips, this set is compatible with handheld routers, router tables, and CNC routing machines - giving woodworkers and cabinetmakers a versatile solution for consistent, professional-quality joinery across a wide range of wood species and sheet materials.

Key Features

• Matched rail and stile profile pair (Profile A) - the complementary male-female geometry ensures tight, gap-free joints every time, reducing the need for fitting adjustments after routing.
• Hardwood carbide (HW) cutting material - delivers durable cutting performance across solid hardwoods, softwoods, plywood, MDF, chipboard, laminates, melamine, and plastic, extending the service life of the bit set.
• 1/2 in. shank diameter - provides stable, low-vibration tool holding in both handheld routers and router tables, resulting in smoother cuts and cleaner edge profiles.
• 5/16 in. radius profile - produces a classic, rounded frame profile that suits traditional and contemporary cabinet door styles.
• Compatible material thickness of 23/32 in. to 7/8 in. - accommodates standard cabinet-grade panel and frame stock without requiring custom setup or special tooling changes.
• Right-hand (RH) rotation - matches the standard rotation direction of virtually all router spindles, allowing direct chuck-in use with no adapter required.
• 2-tooth configuration - balances feed rate and surface finish quality, helping produce clean edges on both solid wood and composite panel materials.
• CMT Orange Shield non-stick coating - prevents bit heating, reduces pitch and resin buildup, and protects against corrosion, keeping the bit cutting cleanly over an extended service life.
• SinterHIP industrial chrome carbide - carbide processed via Hot Isostatic Pressing prevents material failure and extends cutting life beyond standard carbide grades.
• Tri-Metal silver-copper-silver brazing - protects the carbide tip during cuts through harder wood species, reducing the risk of tip separation and tool failure.

Why This Product

• Purpose-built as a matched set - both the rail bit and stile bit are designed together as a complementary pair, so the profiles interlock precisely without trial-and-error fitting between separately sourced bits.
• Handles a practical thickness range of 23/32 in. to 7/8 in. - this spans the most common cabinet door frame stock dimensions, making the set a ready-to-use solution for production cabinetry and one-off shop projects alike.
• Engineered for longevity through three protective technologies - the combination of CMT Orange Shield coating, SinterHIP carbide processing, and Tri-Metal brazing means the set resists heat, resin, corrosion, and tip failure during repeated use.
• Versatile machine compatibility - works with handheld routers, router tables, and CNC routing machines, so the same bit set can serve multiple workflow setups without requiring separate tooling.

Specifications

• Manufacturer Part Number: 891.501.11
• Brand: CMT Orange Tools
• Diameter: 1-3/4 in.
• Cutting Height: 7/8 in.
• Total Length: 2-51/64 in.
• Radius: 5/16 in.
• Shank: 1/2 in.
• Maximum Material Thickness: 23/32 in. - 7/8 in.
• Number of Teeth: 2
• Blade Material: Hardwood Carbide (HW)
• Rotation: Right-Hand (RH)
• Profile: A

Approved Applications

• Rail and stile joinery
• Cabinet door frame routing
• Frame and panel door construction

What's Included

• Rail Bit - Profile A (822.003.11)
• Stile Bit - Profile A