 
        Screw Machine Length Drill Bit: 0.4531″ Dia, 135 °, High Speed Steel Coated, Right Hand Cut, Spiral Flute, Straight-Cylindrical Shank, Series 159
Item #: 81382293
Brand: Chicago-Latrobe
Model #: 49229
Product Specifications
| Drill Bit Size (Inch) | 29/64 | 
| Tool Material | High Speed Steel | 
| Cutting Direction | Right Hand | 
| Coating/Finish | Coated | 
| Drill Point Angle | 135 | 
| Spiral Type | Regular | 
| Flute Type | Spiral | 
| Point Type | Split | 
| Coolant Through | No | 
| Shank Type | Straight-Cylindrical | 
| Number Of Flutes | 2 | 
| Shank Diameter (Decimal Inch) | 0.4531 | 
| Drill Bit Size (Decimal Inch) | 0.4531 | 
| Overall Length (Inch) | 3-9/16 | 
| Shank Diameter (mm) | 11.51 | 
| Series | 159 | 
| Web Thinning | Web-Thinned | 
| Web Configuration | Parallel | 
| Drill Length Type | Screw Machine | 
| Shank Length (Inch) | 1-7/16 | 
| Shank Length (Decimal Inch) | 1.4375 | 
| Shank Length (mm) | 36.51 | 
| Tool Performance | Heavy-Duty | 
| Drill Bit Diameter Tolerance | +0.0000 to -0.0010 in | 
| Standards | ISO | 
| Flute Length (Inch) | 2-1/8 | 
| Drill Bit Grade | Heavy Duty | 
| Drill Bit Size Range (Decimal Inch) | 0.4500 to 0.5000 | 
| Specification Number | NAS 907 | 
| Specification Designation | NAS | 
