FIVE BLADE ASSORTMENT KIT: Reciprocating Saw Blades kit includes five blades, each designed for a specific cutting application. The assortment consists of one blade for wood (B66), one for multipurpose cutting (B610), and three blades for metal cutting (B614, B618, and B624). TPI RANGE: Starrett saw blades come in a TPI range of 6, 10, 14, 18, and 24. This allows for a customized cutting experience based on the material being cut. BI-METAL: The reciprocating saw blade range is manufactured with bi-metal saw technology which features faster cutting & longer blade life. UNIFIED SHANK: The unified shank design with optimized tooth pitch reduces vibration, offering cleaner cuts and less fatigue. These Starrett blades will fit in virtually all cordless reciprocating machines 3X POWER: Bi-Metal reciprocating blade kits provide up to three times the life and increased cutting rates compared to their previous line, setting a new standard for performance and value on the market. PERFECT SIZE: The blades measure 6 inches in length, 3/4 inches in width, and 0.035 inches in thickness. This makes them compatible with the most popular saw blades on the market APPLICATIONS: Reciprocating blades are suitable for use on various materials, including wood, metal, plastic, and structurals. This makes them ideal for both DIY and professional applications., Weight: 0.23809924296 pounds, Manufacturer: Starrett