Irwin Professional circular saw blades are designed to cut all types of wood including hard wood. They have a hard body blade Hardness 39 - 45 HRC, ATB Tooth Design (Alternate Top Bevel) for cross cutting and ripping with 13º-24° positive cutting angles. K10 carbide tips and expansion slots help keep the blade flat and to dissipate heat and reduce warping. They are anti-rust treated.
Reduction ring: 25 and 16mm.
Number of teeth: 30.