Metal Cutting Reciprocating Saw Blade, 8 in L x 3 4 in W x 0.035 in Thick, 18 TPI, 25 EA PK ORS NASCO Made from carbon steel in Made from carbon steel in right hand configuration only These taps are especially suited for restricted area work All taps have taper of 3 4 inch per foot Marked with drill size for pilot hole Supple and durable full grain Goat palm and back Exclusive reverse scalloped Boarhide™ cuff for protection against sparks and spatter Reinforced thumb saddle for extended durability Boarhide™ palm patch for extended wear and protection Unlined and padded palm with wool insulated back Power Blast Technology™ is a high speed blasting along the cutting edge that strengthens the blade to reduce breaks and increase durability Patented T2™ Technology reduces cutting forces on each tooth and optimizes chip removal to allow efficient cutting in the widest range of materials Patented metal cutting TPIs provide faster and more efficient cutting in the widest widest variety of materials including Unistrut