Product Knowledge Views: 33

Common edge forms and selection: 1) Single-flute countersinks - one cutting edge. Pros: a) low cutting force - suits thin walls, small machines, interrupted cutting; b) good chip evacuation - large chip space; c) less vibration - low force; d) cheap. Cons: a) less stable cutting - radial force can loosen the workpiece; b) average finish - spiral tool marks; c) lower efficiency - one cut per revolution. Suits: thin walls, small machines, interrupted cutting, low-demand jobs. 2) Radius-edge countersinks - edge with a radius transition. Pros: a) smooth cutting - gradual entry/exit, low impact; b) good finish - smooth surfaces; c) strong edges - low stress concentration, chip-resistant; d) good for finishing. Cons: a) slightly higher cutting force; b) pricier than single-flute. Suits: finishing, high-finish requirements, stainless and other hard materials, batch production. 3) Multi-flute countersinks (2, 3, 4 flutes) - multiple edges. Pros: a) stable cutting - symmetric flutes cancel radial force; workpiece stays put; b) high efficiency - multiple cuts per revolution; c) fine finish - dense fine marks. Cons: a) high cutting force - needs rigid machines; b) small chip space - not for deep holes or heavy feed; c) expensive. Suits: rigid machines, batch production, high efficiency and quality. How to choose: 1) machine rigidity - small/old machines: single-flute or radius-edge; big machines/machining centers: multi-flute; 2) workpiece - thin walls/cantilevers: single-flute; solid rigid parts: multi-flute; 3) requirements - low demands: single-flute (cheap); high finish: radius-edge or multi-flute; high efficiency: multi-flute; 4) material - stainless/superalloys: radius-edge (strong edge, good finish); aluminum/copper: single- or multi-flute; 5) volume - small/repair: single-flute (cheap); batch: multi-flute (efficient, consistent). We carry single-flute, radius-edge and other forms - we recommend the best for your case; ask us. Note: ybeck.cn specializes in single-flute and radius-edge chamfer tools, angled-hole spot facers and countersinks for various machining scenarios.