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Product Specifications:
| Item | Extra Long Drill Bit |
| Coolant Fed | Coolant Through |
| Cutting Direction | Right Hand |
| Decimal Equivalent | 0.257 |
| Depth X Dia. Ratio | 25xd |
| Drill Bit Point Angle | 132° |
| Drill Bit Point Type | Conical Point |
| Drill Bit Size | F |
| Drill Diameter Tolerance | H7 |
| Drill Length Class | Extra Long |
| Drill Point Length | 1.362 mm |
| Finish | Aluminum Titanium Nitride |
| Finish - Machining | TiAlN |
| Flute Length | 185 mm |
| Flute Type | Helical |
| Grade | WU20PD |
| Material | Carbide |
| Material - Machining | Carbide |
| Material Grade - Machining | Grade WU20PD |
| Max. Drilling Depth | 170 mm |
| Number Of Coolant Holes | 2 |
| Number Of Flutes | 2 |
| Overall Length | 232 mm |
| Primary Material Application | Cast Iron, Steel |
| Primary Material Application Iso Code | K, P |
| Shank Dia. | 7 mm |
| Shank Length | 38 mm |
| Shank Type | Straight |
| Shank Type - Machining | Straight |
| Sheeter Drill | No |
| Spiral Direction | Right Hand |
| System Of Measurement | Metric |
Shipping Info:
| Ship weight (kg) | 0.08 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 23.19 |
| Ship width (cm) | 2.54 |
| Country of Origin | DE |
Product Variants
| Product | Model | Decimal Equivalent | Drill Bit Size | Overall Length | Max. Drilling Depth | Shank Dia. | Price | |
|---|---|---|---|---|---|---|---|---|
![]() |
3899686 | 0.182 | #14 | 124 mm | 75 mm | 5 mm | €438.05 | |
![]() |
3899812 | 0.182 | #14 | 149 mm | 98 mm | 5 mm | €433.65 | |
![]() |
3899579 | 0.182 | #14 | 199 mm | 144 mm | 5 mm | €617.89 | |
![]() |
3899809 | 0.159 | #21 | 149 mm | 93 mm | 5 mm | €433.65 | |
![]() |
3899576 | 0.159 | #21 | 199 mm | 133 mm | 5 mm | €623.34 | |
![]() |
3899690 | 0.213 | #3 | 143 mm | 89 mm | 6 mm | €453.88 | |
![]() |
3899816 | 0.213 | #3 | 173 mm | 116 mm | - | €470.69 |
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Contact us
Contact your account manager right away to get personal advice.
We're available Monday through Friday, from 07:30 until 17:00.
WIDIA 3899750 TDD107Z06528 Extra Long Drill Bit, F Size, 7 mm Shank Dia, 232 mm Overall Length
€646.96 /unit



