Sandvik R840-0580-70-A1A 1220 CoroDrill Delta-C 5.8mm Carbide Drill
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The Sandvik Coromant R840-0580-70-A1A is a new, solid carbide CoroDrill Delta-C straight-flute drill in grade 1220, a PVD-coated (TiAlN-based) submicron carbide grade engineered for general-purpose drilling of steel, stainless steel, and cast iron. The drill features a 5.8 mm cutting diameter (DC), a 39.6 mm usable flute length (LU), and a straight cylindrical shank sized for a Ø6 mm toolholder (CZCms Ø6), making it directly compatible with Sandvik Coromant CoroDrill Delta-C collet chucks and standard ER collet systems of the appropriate bore. The point geometry incorporates a self-centering 140° split point and internal coolant capability (visible coolant ports at the tip), enabling through-spindle coolant delivery for chip evacuation and extended tool life in CNC machining centers. Grade 1220's fine-grain carbide substrate with PVD coating delivers high wear resistance and thermal stability, supporting elevated cutting speeds without premature edge breakdown.
Product Specifications
| Brand | Sandvik Coromant |
| MPN | R840-0580-70-A1A |
| Series | CoroDrill Delta-C |
| Grade | 1220 |
| Cutting Diameter (DC) | 5.8 mm |
| Usable Flute Length (LU) | 39.6 mm |
| Shank Diameter | 6 mm (CZCms Ø6 straight shank) |
| Flute Length / Drill Depth Ratio | ~7xDC |
| Point Angle | 140° |
| Coolant | Through-tool internal coolant |
| Coating | PVD TiAlN-based (grade 1220) |
| Substrate | Solid submicron carbide |
| Number of Flutes | 2 |
| Condition | New |
| Country of Origin | China |