Craftsman 137212140 miter saw Parts

Most Craftsman table saws use a standard miter slot that is 3/4 inch wide by 3/8 inch deep; that is the size many aftermarket miter gauges and sled runners are built around. For exact slot dimensions on your specific saw, confirm the model number and check the 137212140 owner's manual.

We recommend measuring the slot directly because some older or specialty Craftsman saws can vary.

• Unplug the saw before measuring.
• Measure width across the top opening of the slot.
• Measure depth from the tabletop down to the bottom of the slot.
• Check for a T-slot lip (a wider undercut) if your gauge uses a T-bar.
• Test-fit your miter gauge bar; it should slide smoothly with minimal side-to-side play.

A correctly sized miter slot keeps your miter gauge, crosscut sled, and featherboards tracking straight. If the bar is undersized, cuts can wander; if it is oversized, it can bind and affect accuracy and safety.

• Match the slot width and depth first.
• Prefer an adjustable bar (set screws or expansion discs) for a snug fit.
• If your saw has a T-slot, choose a compatible T-bar design.
• Verify your saw’s model number before ordering parts or accessories.

Last updated: February 2026

You should never cut metal or masonry with the Craftsman 137212140 miter saw, and you should never cut any workpiece so small that your hands would be within 7-1/4 inches of the blade. We also never recommend freehand cuts; clamp and support the work to prevent binding and kickback. See the safety rules in the 137212140 owner's manual.

• Ferrous metals (steel, iron) and most other metals unless your saw and blade are specifically rated for it
• Masonry products (brick, tile, concrete, stone)
• Very small pieces that put fingers inside the 7-1/4 inch no-hands zone
• Loose cutoffs that can get trapped and thrown by the blade
• Warped or unstable stock that cannot sit flat against the fence and table

• Freehand cutting (not held firmly against the fence and table)
• Cutting without waiting for the blade to reach full speed
• Changing angles or moving the workpiece before the blade fully stops
• Cutting long boards without side support (tables, sawhorses, blocks)

Miter saw injuries usually happen from kickback, binding, or thrown pieces. Keeping hands out of the blade path, clamping small work, and avoiding metal or masonry cuts reduces the chance of sudden movement and flying debris.

Last updated: February 2026

No. Most miter saw stands are designed to fit many saws, but they are not truly universal. For your Craftsman 137212140 miter saw, the stand must match (or adapt to) the saw’s mounting-hole pattern and base size so the saw bolts down securely and stays stable during cuts.

We recommend confirming these items before you buy or mount the saw:

• Mounting hole spacing on the saw base vs. the stand’s bracket range
• Bolt size and hardware the stand expects (and whether washers/spacers are needed)
• Base support: the stand rails should support the saw base without rocking
• Work support length: extension wings should support long stock on both sides
• Clamping options: ability to clamp the workpiece (safer than freehand)
• Stability: wide stance, locking legs, and minimal flex under load

The 137212140 operator guidance emphasizes safe setup and inspection, including checking mounting holes and keeping the work firmly supported. Use the 137212140 owner's manual to confirm mounting and setup details.

Most “universal” stands work by using adjustable mounting brackets. If the brackets do not line up with your saw’s holes, a simple adapter plate can help.

A safe workaround is an adapter plate (commonly plywood or MDF) that bolts to the saw, then bolts to the stand.

• Use a flat, stiff plate thick enough to resist flex
• Bolt the saw to the plate using the saw’s mounting holes
• Bolt the plate to the stand using the stand’s slots/holes
• Recheck for wobble and retighten hardware after a few cuts

A stand that does not fully support and secure the saw can shift during a cut, which increases the risk of binding, inaccurate cuts, and loss of control. Stable mounting and proper work support help you cut safely and consistently.

Last updated: February 2026

On the Craftsman miter saw model 137212140, the maximum thickness you can cut depends on the cut type and setup. With an auxiliary wood fence installed, the manual lists up to about 3-1/2 in. thickness for a straight crosscut, and up to 2 in. thickness for common miter and compound cuts (see the 137212140 owner's manual).

These are the manual-listed capacities when using an auxiliary wood fence (a straight board about 3/4 in. thick) and the blade is in the correct position.

We recommend using these quick checks before you cut thicker stock:

• Do a dry run (lower the saw with power off) to confirm the blade clears the fence and workpiece.
• Keep hands out of the no-hands zone; the manual calls out staying 7-1/4 in. or more from the blade path.
• Clamp the workpiece whenever possible; never cut freehand.
• Support long boards so the work stays flat on the table.
• Wait for a complete blade stop before lifting the saw or moving the work.

A miter or bevel cut changes the blade angle and the path through the wood. That reduces the usable vertical clearance, so a board that crosscuts at 3-1/2 in. thick may only miter at about 2 in. thick on this saw.

Thicker and longer boards are harder to control. For safer, cleaner cuts:

• Never cut metal or masonry with this saw; it is designed for wood and wood-like products.
• Avoid tiny cutoffs; repetitive cuts that create 1 in. or smaller pieces can get caught and thrown.
• Use an auxiliary wood fence only as described; remove it for bevel cutting if it interferes with the guard.

Last updated: February 2026

On a Craftsman miter saw like model 137212140, the main parts include the cutting arm and motor, the blade and blade guard, and the miter and bevel controls that set your cut angle. For the exact names and locations on your saw, use the 137212140 operator's manual.

• Motor assembly (armature, field, motor housing)
• Cutting arm and pivot (raises and lowers the blade)
• Blade and arbor (arbor shaft and arbor bolt/screw hold the blade)
• Lower blade guard (moves as the arm lowers, then closes when you raise the arm)
• Miter system (miter scale, pointer, detent/lock mechanism)
• Bevel system (bevel lock handle and bevel scale for tilt cuts)
• Fence and table (supports the workpiece; includes a table insert)

These are the parts you typically touch when setting up a cut:

• Power switch/trigger
• Miter lock handle or knob (locks the turntable angle)
• Bevel lock handle (locks the tilt angle)
• Spindle/arbor lock (helps during blade changes on many saws)
• Stop hardware (bracket stop and related fasteners)

Knowing the part names helps you follow maintenance and troubleshooting steps correctly, especially for safety checks like verifying the arm return spring action and making sure the lower guard fully closes after each cut.

• Unplug the saw before adjustments, setup, or blade changes.
• Confirm blade direction: teeth point downward at the front of the saw.
• Keep guards installed and properly adjusted.
• Inspect for cord damage, binding, and misalignment before each use.
• Replace worn motor carbon brushes as a set when they get short.

Last updated: February 2026