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Product Specifications:
| Item | Drill Bit |
| Coolant Fed | Non Coolant Through |
| Cutting Direction | Right Hand |
| Decimal Equivalent | 1.1024 |
| Depth X Dia. Ratio | 8xd |
| Drill Bit Point Angle | 130° |
| Drill Bit Point Type | Conventional Point |
| Drill Bit Size | 28 mm |
| Drill Diameter Tolerance | H8 |
| Finish | Bright, Uncoated |
| Finish - Machining | Bright (Uncoated) |
| Flute Length | 6 11/16" |
| Flute Type | Spiral |
| Grade | Grade HSS-E |
| Material | Vanadium High Speed Steel |
| Material - Machining | Vanadium High Speed Steel |
| Material Grade - Machining | Grade HSS E |
| Max. Drilling Depth | 6.688" |
| Maximum Drilling Depth | 6 11/16" |
| Number Of Flutes | 2 |
| Overall Length | 291 mm |
| Primary Material Application | Aluminum, Brass, Bronze, Cast Iron, Copper, Nickel, Stainless Steel, Steel, Titanium |
| Primary Material Application Iso Code | K, M, N, P, S |
| Secondary Material Application | Composite |
| Secondary Material Application Iso Code | O |
| Shank Type | Taper |
| Shank Type - Machining | Taper |
| Standards | Din 345 |
| System Of Measurement | Metric |
| Taper Shank Size | MT3 |
Shipping Info:
| Ship weight (kg) | 0.35 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 29.1 |
| Ship width (cm) | 2.54 |
| Country of Origin | BR |
Product Variants
| Product | Model | Decimal Equivalent | Drill Bit Size | Overall Length | Max. Drilling Depth | Price | |
|---|---|---|---|---|---|---|---|
![]() |
A4244-10 | 0.3937 | 10 mm | 168 mm | 3.406" | €140.54 | |
![]() |
A4247-10 | 0.3937 | 10 mm | 168 mm | 3.406" | €166.55 | |
![]() |
A4422-10 | 0.3937 | 10 mm | 197 mm | 4.562" | €133.48 | |
![]() |
A4247-10.2 | 0.4016 | 10.2 mm | 168 mm | 3.406" | €183.44 | |
![]() |
A4244-10.2 | 0.4016 | 10.2 mm | 168 mm | 3.406" | €155.98 | |
![]() |
A4422-10.2 | 0.4016 | 10.2 mm | - | 4.562" | €151.86 | |
![]() |
A4247-10.5 | 0.4134 | - | 168 mm | 3.406" | €176.11 |
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WALTER TOOLS A4247-28 5065957 Drill Bit, 28 mm Drill Bit Size, 6 11/16 Inch Flute Length, Mt3 Taper Shank
€827.69 /unit



