Precision Twist Drill Aircraft Extension Drill, Type B Extra Length Heavy Duty, Series: 500-12, 5/16 in Drill - Fraction, 0.3125 in Drill - Decimal Inch, 12 in Overall Length, 4XD Cutting Depth, 2 Flutes, Spiral Flute, 3-3/16 in Flute Length, 5/16 in Shank, Straight Shank, 135 deg Point, Split/Self-Centering Point, Right Hand Cutting Direction, HSS Cutting Edge, HSS, Steam Oxide, Applicable Materials: Plain Carbon Steel, Alloy Steel/Hardened and Tempered Steel, Free Machining Stainless Steel, Austenitic, Ferritic + Austenitic, Martensitic, Lamellar Graphite, Nodular Graphite/Malleable Cast Iron, Unalloyed Titanium, Alloyed Titanium, Nickel
| Applicable Materials | : | Plain Carbon Steel, Alloy Steel/Hardened and Tempered Steel, Free Machining Stainless Steel, Austenitic, Ferritic + Austenitic, Martensitic, Lamellar Graphite, Nodular Graphite/Malleable Cast Iron, Unalloyed Titanium, Alloyed Titanium, Nickel |
| Cutting Depth | : | 4XD |
| Cutting Direction | : | Right Hand |
| Cutting Edge Material | : | HSS |
| Finish | : | Steam Oxide |
| Flute Length | : | 3-3/16 in |
| Flute Type | : | Spiral |
| Number of Flutes | : | 2 |
| Overall Length | : | 12 in |
| Point Type | : | Split/Self-Centering |
| Series | : | 500-12 |
| Shank Size | : | 5/16 in |
| Shank Type | : | Straight |
| Type | : | Type B Extra Length Heavy Duty |
| Drill Size - Fraction | : | 5/16 in |
| Drill Size - Decimal Inch | : | 0.3125 in |
| Point Angle | : | 135 deg |
| Material | : | HSS |