IRWIN MARATHON U-SHANK JIGSAW BLADE - 3-1/4" x 20 TPI HSS MILLEDCut thin metal cleanly with this Irwin Marathon high-speed steel jigsaw blade. Fully hardened HSS teeth handle aluminum, sheet steel, copper, and brass, and the 20 TPI tooth count delivers a finer finish than the 14 TPI blade - the right choice for thinner sheet stock where edge quality matters.
- High-speed steel teeth, fully hardened for metal cutting
- Precision-ground milled teeth
- 20 teeth per inch - fine metal cutting
- 3-1/4" blade length
- U-shank fits jigsaws that take U-shank (universal) blades
- 2 blades per pack
Tip: A standard rule of thumb in metal cutting is to keep at least three teeth in contact with the material at all times - step up in TPI as the stock gets thinner.