Bi-metal technology, High Speed steel, increasing blade contact by 170% Buy the Ingersoll Rand P4CS-50 air reciprocating saw blade pack with durable bi-metal construction and 24 TPI for a perfect balance of cutting speed and smooth performance. This pack of 50 blades is designed for pneumatic air saws, delivering long blade life, consistent cuts, and reliable performance for industrial, automotive, fabrication, and workshop applications where efficiency and... Ingersoll Rand Bi-Metal saw blades enhance overall cutting performance. Buy Reciprocating Saws Online on Ubuy Barbados at Best Prices Coarse Pitch Saw Blades Ingersoll Rand Pneumatic Reciprocating Saw, Model 429 - Shop - Tool Swapper 50 Pack Coarse Tooth Blades Enhanced overall cutting performance Ingersoll Rand Reciprocating Air Saw, 429G - Shop - Tool Swapper Ingersoll Rand saw blades can be used with all standard 1/2 Shank air reciprocating saws. This, along with a new tooth profile that generates smaller, but more chips, reduces the Frictional heat that is generated during the cutting process, which will enhance the overall blade performance.