Chicago-Latrobe 57720

The CHICAGO-LATROBE 57720 is a jobber length drill bit set composed of 20 high-speed steel bits. Each bit has a conventional point and right-hand spiral; shank is a straight shank type with the specified diameter. The bits come in sizes ranging from #80 to #61, covering a size range appropriate for various drilling tasks. - Contains 20 drill bits with sizes from #80 (smallest) to #61 (largest).- Jobber length style with overall lengths are specified as 3/4 inch to 1 5/8 inches.- Made for machining applications within the specified size and material compatibility parameters.- Features a conventional 118-degree point angle for standard drilling applications.- Two-flute spiral design with helix angles between 21 and 34 degrees and right-hand cutting direction.- Straight shank type with a diameter of 27/2000 inch.- Supplied in a metal drill index case for organized storage.- Complies with ASME B94.11M-1993 standards.