The Yato YT-44731 step drill set is engineered for precision drilling in high-quality stainless steel, structural steel, cold rolled steel, non-ferrous metals, steel sheets, and plastic.
Each drill is made of HSS 4241 steel with a titanium nitride coating, which increases tool life, improves heat dissipation, and ensures clean, burr-free holes. The drills feature automatic centering on rounded and slippery surfaces and engineered flutes for effective chip removal.
This set includes 3 step drills covering diameters from 3 mm to 20 mm, making it versatile for a wide range of applications.
TECHNICAL DETAILS:
| Specification | Details |
| Brand | Yato |
| Model | YT-44731 |
| Series | GRD |
| Product Type | Step Drill Set |
| Diameters | 3–12 mm (steps: 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 mm); 4–12 mm (steps: 4, 6, 8, 10, 12 mm); 4–20 mm (steps: 4, 6, 8, 10, 12, 14, 16, 18, 20 mm) |
| Rung Quantity | 10 |
| Max Cutting Capacity | 4 mm |
| Toolholder Type | Cylindrical |
| Material | HSS 4241 |
| Surface Finish | Titanium Nitride Coated |
| Application | Stainless steel, structural steel, cold rolled steel, non-ferrous metals, steel sheets, plastic |
| Hole Quality | Clean edges, burr-free, automatic centering, fast heat dissipation |
| Number of Pieces | 3 |
| Pack Quantity | 1 |
| Is it a Set | Yes (3 drills) |
| CE Mark | No |
| Packaging | PE Bag |
| Entity Responsible (EU) | TOYA S.A. |
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