Sandvik 860.1-0400-018A1-PM 4234 4mm Carbide Coolant-Through Drill
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This is a new Sandvik Coromant CoroDrill 860 solid carbide drill, part number 860.1-0400-018A1-PM 4234, with a 4.00mm cutting diameter confirmed directly from the label. The 860.1 series designates a straight-shank, coolant-through design with internal coolant channels visible at the drill tip, optimized for hole-making in ISO P (steel) and ISO M (stainless steel) materials at aggressive feed rates. Grade 4234 is a PVD-coated carbide grade — the gold/bronze TiAlN-based coating is visible in the product photo — engineered for wear resistance and thermal stability in demanding steel and stainless drilling operations. The 018A1 shank designation indicates an 18mm cylindrical shank diameter compatible with ER collet chucks, hydraulic chucks, and shrink-fit toolholders with 18mm bore. At 1xDC depth-of-cut rating (860.1 prefix), this drill is intended for shallow holes and is suited for CNC machining centers running high-pressure coolant to evacuate chips and maintain tool life.
Product Specifications
| Brand | Sandvik Coromant |
| MPN | 860.1-0400-018A1-PM 4234 |
| Series | CoroDrill 860 |
| Cutting Diameter (DC) | 4.00 mm |
| Shank Diameter | 18 mm |
| Shank Type | Cylindrical (straight) |
| Depth of Cut Ratio | 1xDC (860.1 prefix) |
| Coolant Through | Yes — internal coolant channels |
| Grade | 4234 |
| Coating | PVD TiAlN-based (gold/bronze) |
| Substrate | Solid carbide |
| ISO Material Group | P (steel), M (stainless steel) |
| Point Style | Self-centering, split point |
| Condition | New |
| Compatible Toolholders | ER collet, hydraulic, shrink-fit — 18mm bore |