Product Description
CMT Flush Trim Bit with Insert Knives - 3/4" Diameter, 15/32" Cutting Height, 1/4" Shank is a professional-grade router bit from CMT designed for precise flush trimming of laminates, edge banding, and solid wood on cabinetry and furniture. Built around two replaceable hardwood-grade insert knives secured by special Torx screws, this right-hand rotation bit delivers clean, accurate results when pattern routing or template routing with a hand router or router table equipped with a 1/4" collet. The 2 1/4" overall length and compact 3/4" cutting diameter make it well suited for detail work and tight trim applications across hardwood, softwood, plywood, MDF, chipboard, and plastic materials.
Key Features
- Two Replaceable Insert Knives - knives can be swapped out when dull rather than discarding the entire bit body, reducing long-term tooling cost and downtime between jobs.
- Special Torx Screw Fastening - secures each insert knife firmly and precisely at high routing speeds, maintaining accurate cutting geometry and improving operator safety.
- Two-Sided Reversible Knives - each knife offers a second usable cutting edge by simply flipping it over, effectively doubling the usable life of every insert before replacement is needed.
- Ball Bearing Guide - the guided flush trim design follows a template or pattern edge accurately, producing consistent, repeatable cuts without the need for a fence or additional setup.
- Right-Hand Rotation - compatible with standard right-hand router collets, making this bit ready to use immediately in most hand routers and router table setups with a 1/4" collet.
- Hardwood-Grade (HW) Knife Material - provides the cutting durability needed for clean, smooth results across demanding materials including hardwood, MDF, chipboard, and plastics.
- 3/4" Cutting Diameter with 15/32" Cutting Height - sized for flush trimming and template routing tasks where control and precision at the edge are critical to a clean finished surface.
Why This Product
- The replaceable insert knife system means you never have to retire a bit body simply because the edges are worn - swap or flip the knives and continue working, saving money on repeat tooling purchases.
- The ball bearing guide built into this Type 657.1 flush trim bit follows a template or workpiece edge without additional setup, making it a reliable choice for production pattern routing and laminate trimming on cabinetry and furniture.
- With a 1/4" shank and 2 1/4" overall length, this bit fits a wide range of hand routers and router tables with 1/4" collets, offering practical versatility across common workshop and jobsite setups.
- Torx screw fastening keeps insert knives locked securely during high-speed cuts, reducing the risk of knife shift that can cause surface defects or safety concerns when routing laminates and hardwoods.
Specifications
- Manufacturer Part Number: 657.192.11
- Brand: CMT Orange Tools
- Cutting Diameter: 3/4"
- Cutting Height: 15/32"
- Total Length: 2 1/4"
- Shank Diameter: 1/4"
- Number of Knives: 2
- Knife Type: Replaceable Insert Knives
- Material: HW
- Rotation: Right-Hand
Approved Applications
- Flush trimming laminates and edge banding
- Pattern routing with a template or guide
- Template routing on cabinetry and furniture
- Trimming hardwood, softwood, plywood, MDF, chipboard, and plastics
Frequently Asked Questions
Can the insert knives in this flush trim bit be replaced without replacing the entire bit body?
Yes. The bit uses two replaceable insert knives fixed by special Torx screws. When a knife edge becomes dull, the knife can be flipped to its second usable side or replaced entirely, while the bit body remains in service.
Does this bit include a ball bearing guide for template or pattern routing?
Yes. This bit is part of the CMT Type 657.1 series, which is equipped with ball bearing guides. The bearing rides along the edge of a template or workpiece to produce a flush, consistent cut.
What collet size is required to use this flush trim bit?
This bit has a 1/4" shank and is compatible with hand routers and router tables fitted with a 1/4" collet. It can also be used in a router table with a 1/2" collet adapter.
What materials can this bit cut cleanly?
The hardwood-grade (HW) insert knives are suitable for flush trimming and pattern routing across hardwood, softwood, plywood, MDF, chipboard, laminates, and plastics.
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