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Product Specifications:
| Item | Extra Long Drill Bit |
| Aircraft Drill | Yes |
| Coolant Fed | Non Coolant Through |
| Coolant Through | No |
| Cutting Direction | Right Hand |
| Decimal Equivalent | 0.12 |
| Depth X Dia. Ratio | 10xd |
| Drill Bit Dimension Type | Wire |
| Drill Bit Finish | Bright |
| Drill Bit Grouping | Drill Bit |
| Drill Bit Material | High Speed Steel |
| Drill Bit Point Angle | 135° |
| Drill Bit Point Type | Split Point |
| Drill Bit Size | #31 |
| Drill Dia. Tolerance | -0" to +0.0005" |
| Drill Length Class | Extra Long |
| Drill Point Length | 0.0249" |
| Finish | Bright Uncoated |
| Finish-machining | Bright (Uncoated) |
| Flute Length | 1 5/8" |
| Flute Type | Spiral |
| Grade | Heavy Duty |
| Helix Angle | 28° |
| Left/right Hand | Right |
| List Number | 3957-12 |
| Material | High Speed Steel |
| Material Grade-machining | HIGH PERFORMANCE |
| Material-machining | High Speed Steel |
| Max. Drilling Depth | 1 5/8" |
| No. Of Flutes | 2 |
| Overall Length | 12" |
| Point Angle | 135° |
| Point Type | Split Point |
| Primary Material Application | Aluminum, Brass, Bronze, Copper, Steel |
| Primary Material Application Iso Code | N, P |
| Secondary Material Application | Cast Iron, Stainless Steel |
| Secondary Material Application Iso Code | K, M |
| Shank Dia. | 7/64" |
| Shank Length | 13/8" |
| Shank Type | Straight |
| Shank Type-machining | Straight |
| Size | #31 |
Shipping Info:
| Ship weight (kg) | 0.05 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 30.71 |
| Ship width (cm) | 2.54 |
| Country of Origin | US |
Product Variants
| Product | Model | Max. Drilling Depth | Shank Dia. | Drill Point Length | Flute Length | Shank Length | Drill Bit Size | Finish-machining | Drill Dia. Tolerance | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
C13123 | 2 5/8" | 7/32" | 0.0472" | 2 5/8" | 3 3/8" | #1 | Bright (Uncoated) | -0.001" to 0" | €13.13 | |
![]() |
C13218 | 2 5/8" | 7/32" | 0.0472" | 2 5/8" | 9 3/8" | #1 | Bright (Uncoated) | -0" to +0.0007" | €32.41 | |
![]() |
C13226 | 49/64" | 3/16" | 0.0401" | 2 7/16" | 9 9/16" | #10 | Bright (Uncoated) | -0" to +0.0007" | €25.40 | |
![]() |
C13227 | 2 5/16" | 3/16" | 0.0396" | 2 5/16" | 9 11/16" | #11 | Bright (Uncoated) | -0" to +0.0007" | €27.03 | |
![]() |
C13134 | 2.312" | 3/16" | 0.0391" | 2 5/16" | 3 11/16" | #12 | Bright (Uncoated) | -0" to +0.0007" | €10.85 | |
![]() |
C13228 | 2 5/16" | 3/16" | 0.0391" | 2 5/16" | 9 11/16" | #12 | Bright (Uncoated) | -0" to +0.0007" | €28.27 | |
![]() |
C13229 | 2.312" | 11/64" | 0.0383" | 2 5/16" | 9 11/16" | #13 | Bright (Uncoated) | -0" to +0.0007" | €25.65 |
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CLEVELAND C13242 3957 Extra Long Drill Bit, #31 Size, 1 5/8 Inch Flute Length, 7/64 Inch Shank Dia
€25.25 /unit



