CMT JS1531L-5 5 TPI HCS Reciprocating Saw Blades for Wood (5 Pack), 8-1/2" Cut nail-free coarse wood (&lt;7-1/2-In), pruning green wood (O&lt;7-1/2-In), firewood (O&lt;7-1/2-In). Cutting length 8-1/2-In, cutting depth 3/4-In, Kerf thickness 0.059-In, tooth distance 5mm. Coarse straight cut. Made of high carbon steel, universal shank, ground and taper ground teeth. Delivered in 5-piece packaging.