Irwin® Aircraft Extension Drill, Extra Length, Series: 621, 7/16 in Drill Size - Fraction, 0.4375 in Drill Size - Decimal Inch, 12 in Overall Length, 4-1/16 in Cutting Depth, Regular Spiral Flute, 4-1/16 in Flute Length, Straight Shank, 135 deg Point, Split Point, Right Hand Cutting, HSS Cutting Edge, HSS, Black Oxide, Applicable Materials: Iron Based Ferrous Metal, Low Carbon, Stainless Steel, Wood and Plastic
Drilling in hard-to-reach areas and running wires and cable
| Applicable Materials | : | Iron Based Ferrous Metal, Low Carbon, Stainless Steel, Wood and Plastic |
| Cutting Depth | : | 4-1/16 in |
| Cutting Direction | : | Right Hand |
| Cutting Edge Material | : | HSS |
| Finish | : | Black Oxide |
| Flute Length | : | 4-1/16 in |
| Flute Type | : | Regular Spiral |
| Overall Length | : | 12 in |
| Point Type | : | Split |
| Series | : | 621 |
| Shank Type | : | Straight |
| Type | : | Extra Length |
| Drill Size - Fraction | : | 7/16 in |
| Drill Size - Decimal Inch | : | 0.4375 in |
| Point Angle | : | 135 deg |
| Material | : | HSS |