Extra-long cylinder carbide burrs for deep slots, large flats and extended-reach work. Three head sizes — 12, 13 and 13.5 mm — with up to 50.3 mm cutting length, each in Fine, Coarse and Ex-Coarse grit. Factory-direct from a 20-year precision-tools manufacturer with ISO 9001 / 14001 / 45001 triple-system certification.

| No. | Shape | Diameter | Head Length | Grit | MOQ |
| 1 | Cylinder | 12 mm | 49.5 mm | Fine | 300 pcs |
| 2 | Cylinder | 13 mm | 50 mm | Coarse | 300 pcs |
| 3 | Cylinder | 13.5 mm | 50.3 mm | Ex-Coarse | 300 pcs |
Note: shank diameter and unit price confirmed per inquiry. MOQ as listed.
With roughly 50 mm of cutting surface, this cylinder carries deep slots, wide flats and extended-reach work in one pass — fewer passes, straighter surfaces, longer tool life per job.
| Grit | Character | Typical use |
| Fine | Dense teeth, controlled removal | Finishing and surface blending |
| Coarse | Balanced removal and finish | General slotting and deburring |
| Ex-Coarse | Fastest stock removal | Heavy slotting and roughing |
Produced in an ISO 9001 / 14001 / 45001 triple-certified facility — carbide quality and head geometry checked per lot before packing.
Custom branding, private label and OEM programs available. Packaging configurable for hardware retail.
300 pcs per specification as listed; mixed-size trial orders can be discussed.
Coarse for general slotting, Ex-Coarse for heavy roughing, Fine for final surface blending.
Yes — designed for standard rotary tools and die grinders; confirm shank diameter with our sales team for your collet size.
Yes — private labeling and custom packaging are part of our OEM service.
Send your sizes, grit mix and quantity to [email protected] or via WhatsApp.
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