Product Description
CMT 812.629.11 Straight Bit Long Series by CMT is a professional-grade, long-series straight router bit engineered for deep, clean cuts in a wide range of wood and composite materials. With a 1/2 in. cutting diameter, a generous 2-1/2 in. cutting height, and a 1/2 in. shank, this bit delivers the reach and rigidity needed for dadoes, deep grooves, panel joinery, and template routing applications. Built with micrograin carbide cutters and CMT's signature orange non-stick PTFE coating, this long-series routing bit is designed to handle heavy workloads while maintaining smooth, precise results pass after pass.
Key Features
- Long-Series Design with 2-1/2 in. Cutting Height - provides the extra reach needed for deep straight cuts, dadoes, and through-cuts in thick stock that shorter bits cannot achieve.
- Razor-Sharp Micrograin Carbide Cutters - made from special Fatigue Proof steel and micrograin carbide, these double-faced cutters stay sharper longer and deliver smooth, precise edges even under heavy routing loads.
- 2-Flute Configuration - two cutting edges work together to produce a clean, finished surface on each pass, reducing the need for additional sanding or cleanup.
- CMT Orange Shield Non-Stick PTFE Coating - the trademark orange surface treatment resists resin, pitch, and other residue buildup, keeping the bit running cooler and extending overall tool life.
- Exceptional Chip Ejection - the bit geometry promotes aggressive, consistent chip removal so cutting remains clean and uninterrupted even during prolonged use.
- 1/2 in. Shank - the full-size 1/2 in. shank provides maximum stability and reduced vibration in both handheld routers and router tables, resulting in truer, more consistent cuts.
- Right-Hand Rotation - compatible with all standard router configurations and optimized for conventional feed direction in typical woodworking setups.
Why This Product
- The 2-1/2 in. cutting height sets this bit apart from standard-length straight bits, making it the right choice when you need to rout deep dadoes, full-thickness grooves, or panel edges in a single pass rather than multiple shallow passes.
- Micrograin carbide construction and Fatigue Proof steel mean this bit can withstand continuous, heavy-duty routing without losing edge sharpness - a practical advantage for production environments or demanding shop work.
- The PTFE non-stick coating actively reduces pitch and resin adhesion, which means less cleaning downtime between uses and a longer service life compared to uncoated bits.
- At 4-3/8 in. total length with a 1/2 in. shank, this long-series bit provides both the projection and the rigidity needed for template routing and accurate repeat cuts on a router table or CNC routing machine.
Specifications
- Manufacturer Part Number: 812.629.11
- Brand: CMT Orange Tools
- Diameter: 1/2 in.
- Cutting Height: 2-1/2 in.
- Total Length: 4-3/8 in.
- Shank: 1/2 in.
- Number of Teeth: 2
- Material: HW (Micrograin Carbide)
- Rotation: Right-Hand (RH)
- Product Type: Straight Bit, Long Series
Approved Applications
- Deep Straight Cuts
- Dadoes and Grooves
- Template Routing
- Panel Joinery
- Solid Hardwood
- Softwood
- Plywood
- MDF
- Chipboard
- Laminates
- Melamine
- Plastic
Frequently Asked Questions
What is the maximum depth of cut this bit can make in a single pass?
The CMT 812.629.11 has a cutting height of 2-1/2 in., which represents the maximum material depth it can engage in a single pass. This makes it well suited for deep dadoes, through-grooves, and panel joinery where a standard-length bit would fall short.
What routers is this bit compatible with?
This bit uses a 1/2 in. shank, which fits any router - handheld or table-mounted - equipped with a 1/2 in. collet. It is also compatible with CNC routing machines that accept 1/2 in. shank tooling.
What does the orange PTFE coating on CMT bits actually do?
The orange non-stick PTFE surface coating is CMT's trademark protective treatment. It helps prevent resin, pitch, and other wood residues from bonding to the bit's surface, which reduces heat buildup during cutting, keeps the bit cleaner between uses, and helps protect against corrosion - all of which contribute to a longer working life for the bit.
What materials can this straight router bit cut?
The micrograin carbide cutters and Fatigue Proof steel construction allow this bit to handle a broad range of materials including solid hardwood, softwood, plywood, MDF, chipboard, laminates, melamine, and plastic. The exceptional chip ejection design helps maintain clean, consistent cutting across all of these material types.
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