FREE delivery on orders over €150
Product Specifications:
| Item | Drill Bit |
| Aircraft Drill | No |
| Coolant Fed | Coolant Through |
| Cutting Direction | Right Hand |
| Decimal Equivalent | 0.25 |
| Depth X Dia. Ratio | 6xd |
| Drill Bit Point Angle | 140° |
| Drill Bit Point Type | Notched Point |
| Drill Bit Size | 1/4" |
| Drill Diameter Tolerance | -0" to +0.0005" |
| Drill Length Class | Jobber Length |
| Finish | Bright, Uncoated |
| Finish - Machining | Bright (Uncoated) |
| Flute Length | 1 3/8" |
| Flute Type | Straight |
| Grade | Grade C2 |
| Helix Angle | 0° |
| Material | Carbide |
| Material - Machining | Carbide |
| Material Grade - Machining | Grade C2 |
| Measurement System | Fractional Inch |
| Number Of Flutes | 2 |
| Overall Length | 2 1/2" |
| Point Type | Notched Point |
| Primary Material Application | All Materials |
| Primary Material Application Iso Code | H, K, M, P, S |
| Shank Dia. | 1/4" |
| Shank Type | Straight |
| Shank Type - Machining | Straight |
| Standards | Not Rated |
| System Of Measurement | Imperial |
| Web Construction | Tapered |
| Web Thinning | Thinned |
Shipping Info:
| Ship weight (kg) | 0.03 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 2.54 |
| Ship width (cm) | 2.54 |
Product Variants
| Model | Overall Length | Finish | Decimal Equivalent | Flute Length | Shank Dia. | Depth X Dia. Ratio | Shank Length | Max. Drilling Depth | Price | |
|---|---|---|---|---|---|---|---|---|---|---|
| 470-302280B | 2 7/16" | Altin | 0.228 | 1 5/16" | 7/32" | 6xd | 1 1/8" | - | €44.26 | |
| 470-302280 | 2 7/16" | Bright, Uncoated | 0.228 | 1 5/16" | 7/32" | 6xd | 1 1/8" | - | €44.61 | |
| 470-301935 | 2 1/4" | Bright, Uncoated | 0.1935 | 1 3/16" | 3/16" | 6xd | - | - | €40.80 | |
| 470-301910B | 2 1/4" | Altin | 0.191 | 1.188" | 3/16" | 6xd | - | - | €36.49 | |
| 470-301890B | 2 1/4" | Altin | 0.189 | 1 3/16" | 3/16" | 6xd | - | - | €35.83 | |
| 470-301890 | 2 1/4" | Bright, Uncoated | 0.189 | 1 3/16" | 3/16" | 6xd | - | - | €39.80 | |
| 470-301850B | 2 3/16" | Altin | 0.185 | 1 1/8" | 11/64" | 6xd | 1 5/16" | - | €36.79 |
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Contact us
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We're available Monday through Friday, from 07:30 until 17:00.
GRAINGER 470-202500 Flute Drill Bit, 1/4 Inch Size, 1 3/8 Inch Flute Length, Carbide
€51.69 /unit

