Ideal Industries, Inc. Hole Saw 35-357

VARIABLE PITCH TYPE FERROUS METAL, NON METAL CUT MATERIAL BI-METAL BLADE MATERIAL 1 5/8 INCH DIAMETER 210 RPM (MILD STEEL), 105 RPM (STAINLESS STEEL), 140 RPM (CAST IRON), 280 RPM (BRASS), 315 RPM (ALUMINUM) SPEED RATING 1 5/8 DIAMETER - FRACTIONAL 1 5/8 INCH CUTTING DEPTH 4 TO 6 NUMBER OF TEETH PER INCH IRONMAN[T] BRAND USED WITH ARBOR NUMBER 35-394, 35-536, 35-537