Chicago-Latrobe® 49228 Heavy Duty Screw Machine Drill, 7/16 in Dia x 3-7/16 in L, HSS, Black Oxide
Chicago-Latrobe® Screw Machine Drill, Heavy Duty, Series: 159, 7/16 in Dia, 3-7/16 in Overall Length, 2-1/16 in Cutting Depth, Spiral Flute, 2-1/16 in Flute Length, 7/16 in Shank, Straight Shank, 135 deg Point, Split Point, Right Hand Cutting, HSS Cutting Edge, HSS, Black Oxide, Applicable Materials: Tool Steel, Alloy Steel, Carbon Steel and Cast Iron Applicable
- Heavy duty geometry for drilling tougher materials by hand or machine
- Shorter flute and overall length provide superior rigidity to minimize deflection when using heavy feed rates
- Manufactured from premium high speed steel
- Black oxide surface finish increases wear resistance and adds lubricity, improving chip flow
- 135 deg P3 split point is self-centering for reduced thrust and easier penetration