Diablo Steel Demon Bi-Metal 6 In. 8/10 TPI Metal Demolition Reciprocating Saw Blade (5-Pack) Brand_Hampton Reduces radon gas penetration through

Reduces radon gas penetration through concrete block walls

Laser Blades Optimize Performance In Heavy Metal Cutting Applications With A Thicker (

around the circumference of the bit allows it to be used in a rasping action to enlarge a hole if needed

perma shield non-stick coating for protection against heat

(2) plastic spacers

Diablo Steel Demon Bi-Metal 6 In. 8/10 TPI Metal Demolition Reciprocating Saw Blade (5-Pack) Brand_Hampton Reduces radon gas penetration throughDiablo Steel Demon bi metal reciprocating saw blades are specifically designed for maximum performance in metal demolition applications. The blade's ultra hardened cutting edge delivers up to 4 times longer life than those of standard blades. Dual Tooth design features a double tooth configuration with small gullets for faster material removal and extra durability. Perma SHIELD nonstick coating protects from corrosion while reducing friction and heat.