The tolerances for various aspects of the Cleveland drill bits are: drill diameter range through 1/8? +0.0000?/-0.0005?, over 1/8? to 1/4? +0.0000?/-0.0007?, over 1/4? through 1/2? +0.0000?/-0.0010?, over 1/2? to 1? +0.0000?/-0.0012?, over 1? to 2? +0.0000?/-0.0015?, over 2? to 3-1/2? +0.0000?/-0.0020?; drill overall length and flute length #80 through 1/8? +0.1250?/-0.0626?, over 1/8? to 1/2? +0.1250?/-0.1250?, over 1/2? to 1? +0.2500?/-0.1250?, over 1? to 2? +0.2500?/-0.2500?, over 2? to 3-1/2? +0.3750?/-0.3750?; drill point angle diameter range 1/16? to 1/2? included angle 118 or 135 degrees +/-5 degrees, over 1/2? to 1 1/2? included angle 118 degrees +/-3 degrees, over 1-1/2? to 3-1/2? includes angle 118 degrees +/- 2 degrees; drill lip height diameter range 1/16? to 1/8? total indicator variation 0.0020?, over 1/8? to 1/4? total indicator variation 0.0030?, over 1/4? to 1/2? total indicator variation 0.0040?, over 1/2? to 1? total indicator variation 0.0050?, over 1? to 3 1/2? total indicator variation 0.0060?. Drill bits are cutting tools used to make holes in a range of materials. They are used in machines such as handheld portable drills, drill presses, machining centers, and lathes. Drill bits come in a variety of types and lengths. Twist drill bits are the most common type of drill bit. They are a round, twisted shaft, end-cutting tool with two or more cutting edges and two or more flutes. Short length drill bits (also called stub or screw-machine length) are the shortest and stiffest twist bits, helping to reduce the chance of deflection or breakage when drilling. Greenfield Industries manufactures tools under the brand names Cleveland, Chicago-Latrobe, Cle-Line, Vermont Tap & Die, Bassett, Putnam Tools, Geometric, Vers-O-Tool, H & G, and Acme-Fette. The company owned by Top-Eastern Group and headquartered in Seneca, SC, makes tools that meet American National Standards Institute (ANSI), National Aerospace Standard (NAS), and Deutsches Institut f?r Normung (DIN) standards.

The tolerances for various aspects of the Cleveland drill bits are: drill diameter range through 1/8? +0.0000?/-0.0005?, over 1/8? to 1/4? +0.0000?/-0.0007?, over 1/4? through 1/2? +0.0000?/-0.0010?, over 1/2? to 1? +0.0000?/-0.0012?, over 1? to 2? +0.0000?/-0.0015?, over 2? to 3-1/2? +0.0000?/-0.0020?; drill overall length and flute length #80 through 1/8? +0.1250?/-0.0626?, over 1/8? to 1/2? +0.1250?/-0.1250?, over 1/2? to 1? +0.2500?/-0.1250?, over 1? to 2? +0.2500?/-0.2500?, over 2? to 3-1/2? +0.3750?/-0.3750?; drill point angle diameter range 1/16? to 1/2? included angle 118 or 135 degree