Electric Shear Accessories

Match the blade to your shear's exact make and model, not just its gauge rating — blade mounting geometry, tooth pitch, and thickness vary between manufacturers even for shears with similar cutting capacity. ChatMRO can cross-reference your shear's model number to the correct OEM or compatible aftermarket blade set.

Straight cut blades use a fixed punch-and-die pair best suited to long, straight cuts. Swivel head blades rotate to follow curves and contours, useful for pattern cutting. Double cut shears use two blades shearing from opposite sides simultaneously, producing a flat cut edge without the slight curl single-blade shears leave behind — preferred where the cut edge needs to lie flat.

A single-blade (straight or swivel head) shear inherently leaves a slight curl on the cut piece because the metal is sheared from one side only — this is normal and not a defect. If the curl is excessive, worn or improperly gapped blades are the likely cause; if a flat edge is required, a double-cut shear design eliminates the curl entirely.

Not without risking motor burnout, gearbox damage, or blade failure — the rated gauge capacity accounts for the torque the motor and gearbox can sustain continuously. Pushing a shear rated for 18 gauge mild steel into 14 gauge stock will overheat the motor and dull or chip the blades well before their normal service life.

This depends heavily on material hardness and cutting volume — high-speed steel blades on mild steel sheet in moderate daily use commonly last months, while stainless or coated sheet metal dulls blades faster. Replace or sharpen when cuts start requiring noticeably more force or leave visibly ragged edges rather than waiting for complete blade failure.