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21mm is a precision carbide‑tipped reamer designed to bring holes to a tight ISO H5 tolerance
Use cases include creating or repairing internal threads in metal parts where M24x3 fasteners are required—from machinery housings and engine components to rugged steel plates
and delivers consistent bore quality across production runs
consistent finishes across operations: Suitable for roughing
Taper shank with spiral-flute geometry: Secure mounting in compatible machines and efficient chip evacuation for smoother
OSG Carbide Drill 5XD - WD1 Coated - With Oil Hole Drilling - Through Coolant - 6.3mm Computer Cabinet & Workbench 21mm is a precision carbide‑tippedThe OSG Carbide Drill 5XD, 6. 3 mm diameter, WD1 coating, and oil hole with through coolant, is engineered for demanding deep hole drilling in modern machining environments. With a 5XD (five times diameter) length to diameter ratio, it delivers extended reach and versatile performance without compromising rigidity, making it a reliable choice for job shops, engineers, and production flooring alike. WD1 Coated for wear resistance: The WD1 coating
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