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Return To ShopWidia Small Hole Boring Bars A and B Series are precision internal turning tools designed for machining small-diameter bores with high accuracy. Manufactured from solid carbide or heavy metal substrates, they provide excellent rigidity, vibration resistance, and dimensional stability, ensuring reliable performance in fine boring, finishing, and precision machining applications across industries.
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Engineered for tight internal machining spaces, the A and B Series boring bars feature optimized geometry for chip evacuation and smooth cutting action. Their robust construction minimizes deflection, enabling stable machining even at extended reach ratios. Compatibility with multiple insert styles provides flexibility for steel, stainless steel, and non-ferrous material applications.
The Widia small hole platform supports micron-level accuracy for finishing operations in aerospace, medical, and precision engineering components. High-density shank materials improve damping characteristics, reducing chatter and improving surface quality. These boring bars are suitable for CNC lathes and turning centers where small bore diameters demand exceptional stability and repeatable machining results.
Solid carbide or heavy metal construction reduces vibration
Designed for precision machining in confined bores
Improves chip evacuation and surface finish
Minimizes chatter for better machining stability
Suitable for steel, stainless steel, and non-ferrous materials
| Specification | Details |
|---|---|
| Product Series | Small Hole Boring Bar A & B Series |
| Tool Type | Internal Turning / Boring Bar |
| Shank Material | Solid Carbide or Heavy Metal (model dependent) |
| Minimum Bore Diameter | Micro to small diameters (model dependent) |
| Insert Compatibility | Indexable inserts (various geometries) |
| Cutting Direction | Right-hand / Left-hand variants |
| Coolant Supply | External coolant (some models coolant-through capable) |
| Machine Compatibility | CNC lathes and turning centers |
| Application | Internal boring, finishing, precision hole machining |