Chicago-Latrobe 69897

The CHICAGO-LATROBE 69897 is a jobber length drill bit set consisting of 20 pieces made from high speed steel with a general-purpose grade. The bits have a conventional point and a right-hand spiral direction; they are suitable for use on aluminum, cast iron, and steel when used with appropriate drilling equipment and operating parameters. This set includes sizes from 80 to 61 with varying overall lengths from 3/4 inch up to 1 5/8 inches and comes housed in a metal drill index for organization and storage.Key Features: – Drill bit material: High speed steel (general-purpose grade) – Drill bit size range: 80 (smallest) to 61 (largest) – Number of bits: 20 pieces with 2-flute spiral design – Length: Jobber length with overall lengths from 3/4″ to 1 5/8″ – Point type: Conventional 118-degree point angle – Shank type: Straight with diameter of 27/2000 inches – Spiral direction: Right hand with helix angles between 21° and 34° – Primary material applications: Aluminum, cast iron, and steel (ISO K, N, P) – Measurement system: Wire gauge sizing – Standard: ASME B94.11M-1993 – Includes a metal drill bit index case