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Product Specifications:
| Item | Taper Length Drill Bit |
| Application | For Metalworking |
| Coolant Fed | Non-Coolant Through |
| Coolant Through | No |
| Cutting Direction | Right Hand |
| Decimal Equivalent | 0.4844 |
| Depth X Dia. Ratio | 8xd |
| 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 | 135° |
| Drill Bit Point Type | Notched Point |
| Drill Bit Size | 31/64" |
| Drill Diameter Tolerance | -0.001" to 0" |
| Drill Length Class | Taper Length |
| Drill Point Length | 0.1003" |
| Finish | Bright, Uncoated |
| Finish - Machining | Bright (Uncoated) |
| Flute Length | 5 3/4" |
| Flute Type | Parabolic |
| Grade | Heavy Duty |
| Helix Angle | 40° |
| Material | High Speed Steel |
| Material - Machining | High Speed Steel |
| Material Grade - Machining | Heavy Duty |
| Max. Drilling Depth | 5 3/4" |
| Number Of Flutes | 2 |
| Overall Length | 7 3/4" |
| Point Angle | 135° |
| Point Type | Notched Point |
| Primary Material Application | Aluminum, Brass, Bronze, Copper, Magnesium, Steel |
| Primary Material Application Iso Code | N, P |
| Shank Dia. | 31/64" |
| Shank Length | 2" |
| Shank Type | Straight |
| Shank Type - Machining | Straight |
| Size | 0.484" |
| Spiral Direction | Right Hand |
| System Of Measurement | Fractional Inch |
Shipping Info:
| Ship height (cm) | 2.54 |
| Ship length (cm) | 20.6 |
| Ship width (cm) | 2.54 |
| Country of Origin | US |
Product Variants
| Model | Flute Type | Flute Length | Overall Length | Decimal Equivalent | Material | Finish | Coolant Fed | Max. Drilling Depth | Price | |
|---|---|---|---|---|---|---|---|---|---|---|
| 50305 | Spiral | 3 3/8" | 5 3/4" | 0.18 | High Speed Steel | Black Oxide | Non-Coolant Through | 3 3/8" | €21.81 | |
| 50306 | Spiral | 3 3/8" | 5 3/4" | 0.177 | High Speed Steel | Black Oxide | Non-Coolant Through | 3 3/8" | €22.05 | |
| 50309 | Spiral | 3 3/8" | 5 3/4" | 0.166 | High Speed Steel | Black Oxide | Non-Coolant Through | 3 3/8" | €21.59 | |
| 68861 | Parabolic | 4 1/8" | 5 3/4" | 0.159 | High Speed Steel | Bright, Uncoated | Non-Coolant Through | 4 1/8" | €28.27 | |
| 50312 | Spiral | 3 3/8" | 5 3/4" | 0.157 | High Speed Steel | Black Oxide | Non-Coolant Through | 3 3/8" | €22.27 | |
| 50314 | Spiral | 3" | 5 3/8" | 0.152 | High Speed Steel | Black Oxide | Non-Coolant Through | 3" | €21.42 | |
| 68866 | Parabolic | 3 3/4" | 5 3/8" | 0.147 | High Speed Steel | Bright, Uncoated | Non-Coolant Through | 3 3/4" | €25.08 |
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Contact us
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We're available Monday through Friday, from 07:30 until 17:00.
CHICAGO-LATROBE 68831 Taper Length Drill Bit, 31/64 Inch Drill Bit Size, 5 3/4 Inch Flute Length
€55.27 /unit

