QC41G Series No.33 High Speed Steel General Purpose Heavy Duty Screw Drill Bit Features. Rugged parabolic flute design for efficient chip removal, allows greater drilling depths in one pass. Low thrust design self-centering split point for easier penetration. Bright finish improves chip flow in soft or non-ferrous materials. Pack of 12 Applicable Materials. Alloy steel, brass, bronze, copper, ferritic austenitic, free machining stainless steel, hardened and tempered steel, lamellar graphite, martensitic, magnetic mild steel, nodular graphite/malleable cast iron, plain carbon steel, structural steel/case carburizing steel, and unalloyed nickel. Specifications: Color: Gold. Depth of cut 3XD. Cutting direction: Right hand. Cutting edge material: HSS. Drill diameter measuring system: Imperial. Finish: TiN coated. Flute length 7/8 in. Parabolic Flute Type. Letter/No. 33 Wire Size. HSS Material. Number of Flutes: 2. Overall Length: 17/8 in. Point Angle: 135 Degrees. Point Type: Radius Split. QC41G Series. Shank Size: 0.113 in. Shank Type: Straight. Type: General Purpose: Heavy Duty