Specifications
| Drill Bit Size (Inch): 1/4 | Drill Bit Size (Letter): E |
| Drill Bit Size (Decimal Inch): 0.2500 | Drill Bit Material: HSS |
| Drill Point Angle (Degrees): 135 | Coating/Finish: Oxide |
| Flute Type: Regular Spiral | Cutting Direction: Right Hand |
| Point Type: Split Point | Primary Workpiece Material: Cast Iron; Steel |
| Coolant Through: No | Number of Flutes: 2 |
| Flute Length (mm): 69.85 | Flute Length (Decimal Inch): 2.7500 |
| Flute Length (Inch): 2-3/4 | Shank Diameter (Decimal Inch): 0.2500 |
| Overall Length (mm): 101.60 | Overall Length (Inch): 4 |
| Spiral Type: Regular | Overall Length (Decimal Inch): 4.0000 |
| Series: Jobber | Tool Application: Holemaking |
| Shank Diameter (Inch): 1/4 | Web Thinning: Web-Thinned |
| Web Configuration: Tapered | Shank Type: Straight |
| Double Margin: No | Drill Bit Grade: Heavy Duty |
| Drill Bit Size Range (Decimal Inch): 0.2500 – 0.3000 | Specification Designation: NAS |
| Country of Origin: VARIOUS | |
| Drill Bit Size (Inch): 1/4 | |
| Drill Bit Size (Letter): E | |
| Drill Bit Size (Decimal Inch): 0.2500 | |
| Drill Bit Material: HSS | |
| Drill Point Angle (Degrees): 135 | |
| Coating/Finish: Oxide | |
| Flute Type: Regular Spiral | |
| Cutting Direction: Right Hand | |
| Point Type: Split Point | |
| Primary Workpiece Material: Cast Iron; Steel | |
| Coolant Through: No | |
| Number of Flutes: 2 | |
| Flute Length (mm): 69.85 | |
| Flute Length (Decimal Inch): 2.7500 | |
| Flute Length (Inch): 2-3/4 | |
| Shank Diameter (Decimal Inch): 0.2500 | |
| Overall Length (mm): 101.60 | |
| Overall Length (Inch): 4 | |
| Spiral Type: Regular | |
| Overall Length (Decimal Inch): 4.0000 | |
| Series: Jobber | |
| Tool Application: Holemaking | |
| Shank Diameter (Inch): 1/4 | |
| Web Thinning: Web-Thinned | |
| Web Configuration: Tapered | |
| Shank Type: Straight | |
| Double Margin: No | |
| Drill Bit Grade: Heavy Duty | |
| Drill Bit Size Range (Decimal Inch): 0.2500 – 0.3000 | |
| Specification Designation: NAS | |
| Country of Origin: VARIOUS |
| MSC# | 84579176 |
| Mfr# | 300SB 1/4 |
| Big Book# | 24 |



















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