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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 | 12xd |
| 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 | 8 23/32" |
| Flute Type | Parabolic |
| Grade | General Purpose |
| Material | High Speed Steel |
| Material - Machining | High Speed Steel |
| Material Grade - Machining | General Purpose |
| Max. Drilling Depth | 8.719" |
| Maximum Drilling Depth | 8 23/32" |
| Number Of Flutes | 2 |
| Overall Length | 343 mm |
| Primary Material Application | Aluminum, Brass, Bronze, Cast Iron, Copper, Steel |
| Primary Material Application Iso Code | K, N, P |
| Secondary Material Application | Composite, Nickel, Stainless Steel, Titanium |
| Secondary Material Application Iso Code | M, O, S |
| Shank Type | Taper |
| Shank Type - Machining | Taper |
| Standards | Din 341 |
| System Of Measurement | Metric |
| Taper Shank Size | MT3 |
Shipping Info:
| Ship weight (kg) | 0.42 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 34.3 |
| 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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Contact us
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WALTER TOOLS A4422-28 5066191 Drill Bit, 28 mm Drill Bit Size, 8 23/32 Inch Flute Length, Mt3 Taper Shank
€666.96 /unit


