Craftsman 137212000 miter saw Parts

Yes. A 12-inch miter saw typically cuts a 4x4 in one pass, but the Craftsman 137212000 is designed for 10-inch blades and, per the 137212000 owner's manual, it can cut a dimensional 4x4 (about 3-1/2 in. x 3-1/2 in.) in one cut when you install an auxiliary wood fence.

What matters for the Craftsman 137212000

This model’s manual calls out a specific method for a one-cut 4x4: add an auxiliary wood fence (straight wood about 3/4 in. thick) attached to the saw fence, then make a full-depth cut to create a blade slot before cutting your workpiece.

Key points to follow:

• Use only 10-inch saw blades that meet the tool’s requirements (this saw is not a 12-inch model).
• Build the auxiliary fence from straight wood; secure it firmly to the fence.
• Make a full-depth cut in the auxiliary fence first to create the blade slot.
• Check for interference with the lower blade guard; adjust if needed.
• Remove the auxiliary fence for bevel cutting (it’s intended for 0° bevel use).

Quick capacity guide (with auxiliary fence)

Cut type	Typical max capacity noted for this saw	What that means for a 4x4
Crosscut at 0°	3-1/2 in. x 3-1/2 in.	One-cut 4x4 crosscut is supported
Miter 45°	3-1/2 in. x 2 in.	A 4x4 may not fit in one pass at 45°
Bevel 45°	2 in. x 3-1/2 in.	Not a one-pass 4x4 cut
Compound 45°	2 in. x 2 in.	Not a one-pass 4x4 cut

Safe setup tips before you cut

• Keep your hands at least 6-1/2 inches from the blade path.
• Hold the workpiece firmly against the fence to prevent shifting.
• Support long stock so it lays flat on the table during the cut.
• With the saw OFF, lower the blade to “preview” the cut line before powering on.
• If the saw binds, stops, or vibrates, turn it OFF and unplug it before correcting the issue.

Why it matters

A 4x4 is thick enough that small setup issues (bowed lumber, poor support, fence misalignment, or guard interference) can cause binding and kickback. Using the auxiliary fence method gives this Craftsman miter saw the clearance and stability needed for a clean, controlled one-pass cut.

Last updated: February 2026

You should never cut ferrous metals (iron or steel), masonry, or small pieces with the Craftsman 137212000 miter saw; these materials and setups greatly increase the risk of binding, kickback, and loss of control. Follow the safety rules in the 137212000 owner's manual.

Materials and cuts to avoid

• Ferrous metals (steel, iron, rebar, nails embedded in wood)
• Masonry products (brick, concrete, tile, stone)
• Small workpieces that put your hands too close to the blade
• Freehand cuts (work not held firmly against the fence)
• Round stock (dowels, tubing) unless it is fully supported and clamped so it cannot roll

What you can cut instead (and how to do it safely)

The 137212000 is designed primarily for controlled crosscuts and miter/bevel cuts in wood and wood composites.

• Keep your hands at least 6-1/2 inches from the blade path
• Clamp the workpiece when it is short, narrow, or likely to shift
• Support long boards on both sides of the saw table
• After the cut, release the switch and wait for the blade to stop before raising the cutting head

Non-ferrous metal: allowed only with the right setup

The manual allows non-ferrous metal cutting only under strict conditions.

Material	OK on a miter saw?	Key requirement
Aluminum (non-ferrous)	Sometimes	Use a blade specifically rated for non-ferrous metal; clamp the workpiece
Steel/iron (ferrous)	Never	Do not cut ferrous metals
Brick/concrete/tile	Never	Do not cut masonry

Why it matters

Ferrous metal and masonry can overload the blade and tool, throw debris, and cause sudden grabbing. Small pieces are dangerous because they pull your hands into the cutting zone and are hard to control.

Last updated: February 2026

For your Craftsman miter saw model 137212000, we recommend buying replacement parts through the model’s parts listing on Sears PartsDirect so you can match the correct part number from the official parts list in the 137212000 owner's manual.

Best way to get the right part for model 137212000

Use the parts list in the manual and order by part number (not by diagram key number). This is the fastest way to avoid ordering the wrong item.

• Find the exact model number on the saw’s ID label: 137212000
• Look up the part in the manual parts list (example items include screws, washers, handles, and assemblies)
• Order by the part number shown in the list
• If you are replacing an electrical component, use a qualified service technician
• Keep your blade specs consistent with the tool (this model uses a 10-inch blade)

What “replacement parts” means for this saw

The manual calls out using Craftsman replacement parts for servicing. It also notes that repairing or replacing electrical parts can create a hazard unless the repair is done by a qualified technician.

Common part categories you may be shopping for

Part category	Examples you might see in the parts list	When you typically replace it
Fasteners and hardware	Screws, washers	Missing, stripped, or damaged hardware
Adjustment and lock parts	Locking handle assembly, pointer	Won’t hold miter/bevel settings
Motor service items	Brush cover (and related items)	Motor runs poorly or intermittently
Cutting consumables	10-inch blade	Dull, warped, or damaged blade

Why it matters

Ordering by the correct model number (137212000) and part number helps ensure proper fit and safe operation. Using the wrong blade size or incorrect parts can lead to poor cuts, vibration, or unsafe conditions.

Last updated: February 2026

On the Craftsman 137212000 miter saw, 31.6° is a built-in positive stop on the miter scale. We use it because it is one of the most common preset angles, and it is especially useful for fast, repeatable compound cuts such as standard crown molding setups.

What the 31.6° stop does on this saw

The owner's manual explains that the miter scale includes positive stops at 0°, 15°, 22.5°, 31.6°, and 45°. Positive stops let the table “click” into a common angle quickly and accurately.

Common reasons we use 31.6°:

• Speed: it is faster than dialing in an angle from scratch
• Repeatability: helps keep multiple pieces consistent
• Accuracy: reduces small setup errors when the stop is engaged
• Crown molding: pairs with a bevel setting for compound cuts

Crown molding: why 31.6° is so common

For “standard” crown molding laid flat on the table, the manual shows a typical compound setup of:

• Bevel: 33.9°
• Miter: 31.6°

That combination is used to form tight 90° inside and outside corners when the molding is positioned correctly against the fence.

Task	Miter setting	Bevel setting	Notes
Quick common-angle crosscuts	31.6° stop	0°	Uses the positive stop for speed
Standard crown molding (laid flat)	31.6°	33.9°	Test on scrap first

How to set the 31.6° positive stop (quick steps)

We recommend following the manual’s positive-stop method:

• Unplug the saw and confirm the switch is OFF
• Press and hold the positive stop locking lever
• Rotate the miter table until it engages at 31.6°
• Release the lever and confirm it fully seats in the stop
• Make a test cut on scrap before cutting finish material

Why it matters

Using the 31.6° positive stop helps you get cleaner-fitting joints with less measuring and fewer do-overs, especially on trim work where small angle errors show up as gaps.

Last updated: February 2026