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Product Specifications:
| Item | Jobber Length Drill Bit |
| Aircraft Drill | No |
| Application | For Abrasive Materials, Cast Iron And Non-Ferrous Materials |
| Coolant Fed | Non-Coolant Through |
| Coolant Through | No |
| Cutting Direction | Right Hand |
| Decimal Equivalent | 0.3125 |
| Depth X Dia. Ratio | 4xd |
| Depthdia. Ratio | 4Xd |
| Drill Bit Dimension Type | Fractional Inch |
| Drill Bit Finish | Bright |
| Drill Bit Grouping | Drill Bit |
| Drill Bit Material | High Speed Steel |
| Drill Bit Point Angle | 118° |
| Drill Bit Point Type | Conventional Point |
| Drill Bit Size | 5/16" |
| Drill Diameter Tolerance | -0.001" to 0" |
| Drill Length Class | Jobber Length |
| Drill Point Length | 0.0939" |
| Finish | Bright |
| Finish - Machining | Bright (Uncoated) |
| Flute Length | 3 3/16" |
| Flute Type | Spiral |
| Grade | General Purpose |
| Helix Angle | +21° to +34° |
| Left/right Hand | Right |
| Material | Carbide Tipped |
| Material - Machining | Carbide Tipped |
| Material Grade - Machining | General Purpose |
| Mfr. Series | CTD |
| No. Of Pieces | 1 |
| Number Of Coolant Holes | 0 |
| Number Of Flutes | 2 |
| Overall Length | 4 1/2" |
| Point Angle | 118° |
| Point Type | Conventional Point |
| Primary Material Application | Aluminum And Non-Ferrous Material, Cast Iron |
| Primary Material Application Iso Code | K, N |
| Series | CTD Series |
| Shank Dia. | 0.312" |
| Shank Diameter | 5/16" |
| Shank Length | 1 5/16" |
| Shank Type | Straight |
| Shank Type - Machining | Straight |
| Sheeter Drill | No |
| Size | 0.312" |
| Spiral Direction | Right Hand |
| System Of Measurement | Fractional Inch |
| Web Thinning | Thinned |
Shipping Info:
| Ship weight (kg) | 0.05 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 12.5 |
| Ship width (cm) | 2.54 |
| Country of Origin | CN |
Product Variants
| Model | Drill Bit Size | Decimal Equivalent | Flute Length | Overall Length | Shank Dia. | Max. Drilling Depth | Shank Length | Drill Diameter Tolerance | Price | |
|---|---|---|---|---|---|---|---|---|---|---|
| 77669 | 1/2" | 0.5 | 4 1/2" | 6" | - | - | 1 1/2" | -0.001" to 0" | €137.22 | |
| 77653 | 1/4" | 0.25 | 2 3/4" | 4" | 1/4" | 2 1/16" | 1 1/4" | -0" to +0.0007" | €64.94 | |
| 77659 | 11/32" | 0.3438 | 3 7/16" | 4 3/4" | 0.344" | 2 9/16" | 1 5/16" | -0.001" to 0" | €89.17 | |
| 77663 | 13/32" | 0.4063 | 3 7/8" | 5 1/4" | 0.391" | 2 29/32" | 1 3/8" | -0.001" to 0" | €100.30 | |
| 77667 | 15/32" | 0.4688 | 4 5/16" | 5 3/4" | 0.469" | 3 15/64" | 1 7/16" | -0.001" to 0" | €137.06 | |
| 77649 | 3/16" | 0.1875 | 2 5/16" | 3 1/2" | 0.188" | 1 47/64" | 1 3/16" | -0" to +0.0007" | €53.95 | |
| 77661 | 3/8" | 0.375 | 3 5/8" | 5" | 3/8" | - | 1 3/8" | -0.001" to 0" | €91.83 |
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Contact us
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CHICAGO-LATROBE 77657 Jobber Length Drill Bit, 5/16 Inch Size Size, 3 3/16 Inch Size Flute Length
€82.03 /unit

