CMT
CMT 811.158.11 straight cut router bit 5/8 inch
Carbide-tipped straight cut router bit with a 5/8 inch cutter diameter
- Carbide tip stays sharp longer for clean cuts
- 5/8 inch cutter diameter suits common joinery tasks
- 1/4 inch shank fits standard router collets
- 2 5/8 inch overall length provides stable control
- 3/4 inch cutting depth handles typical material thickness
CMT 811.158.11 straight cut router bit
The CMT 811.158.11 is a carbide-tipped straight cut router bit designed for clean profiling cuts in wood and composite materials. It suits woodworkers and joiners who need a reliable fractional-inch tool for general routing tasks. The cutter diameter is 5/8 inch. This accessory fits standard collets for handheld or table-mounted routers.
Carbide tip and fractional sizing
The carbide cutting edges maintain sharpness longer than high-speed steel when working with abrasive stock or laminates. Fractional-inch sizing matches common imperial collets and templates without metric conversion. The straight profile produces flat-bottom grooves and dados for joinery or decorative inlay work. No additional software or accessories are bundled with this single bit.
Verify collet size and shank fit
Check that your router accepts a 1/4 inch shank before ordering. Confirm the machine’s collet or reducer matches this diameter exactly. Ensure the tool’s overall length and cutting depth suit your project’s material thickness. Buyers who need a 1/2 inch shank or a different cutter diameter should select another model.
Highlights
- Carbide tip stays sharp longer for clean cuts
- 5/8 inch cutter diameter suits common joinery tasks
- 1/4 inch shank fits standard router collets
- 2 5/8 inch overall length provides stable control
- 3/4 inch cutting depth handles typical material thickness
Specifications
| Brand | CMT |
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Questions about this item
When will the carbide tips on this 5/8 in. straight-cut router bit need replacing?
The carbide tips are designed for extended life in wood and composite materials; replace them when cut quality drops or the edges no longer hone cleanly.
What limits continuous cutting with the 1/4 in. shank on this bit?
The 1/4 in. shank diameter is the first constraint under sustained feed rates; excessive side load can cause deflection or premature wear.
How much heat builds up in the 5/8 in. cutter during all-day routing?
Carbide dissipates heat efficiently, but prolonged heavy cuts will warm the cutter body; allow cooling pauses to maintain tip integrity and cut finish.
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