Ideal tool geometry. Ideal hole quality. X-tra Long Solid Carbide Drills Unlock 15% or more tool life and produce 40xD, 50xD and 60xD holes with Seco X-tra Long Solid Carbide Drills. Feed faster than with gundrills. Speed up the cut with greater stiffness and produce better hole quality than with HSS drills. Optimized tool geometry and coating improve results. Symmetrical point geometry enhances entrance stability and improves guidance on breakthrough at exit. Achieve angled exits, cross holes and meeting holes with minimal deflection. Improve chip formation and evacuation with strong, consistent, reliable output. Recondition tools up to three times to stay ahead of the curve. 5 key benefits — Secure and reliable deep-hole drilling process. — Increase tool life by 15% compared to equivalent drills. — Unlock three reconditioning cycles per drill. — Machine up to 3 x faster than with HSS drills. — Produce deep holes with thigh geometrical tolerances. Drill range overview L/D ratio 40 x D Item no 10143441 10143442 10143443 10143444 10143445 10143446 10143447 10143448 10143449 10143450 Designation Dc SD2040A-0300-120-04R1 3 SD2040A-0400-160-04R1 4 SD2040A-0450-180-06R1 4,5 SD2040A-0500-200-06R1 5 SD2040A-0600-240-06R1 6 SD2040A-0635-254-08R1 6,35 SD2040A-0650-260-08R1 6,5 SD2040A-0700-280-08R1 7 SD2040A-0750-300-08R1 7,5 SD2040A-0800-320-08R1 8 L/D ratio 60 x D 50 x D Item no 10188284 10188285 10188286 10188287 10188288 10188289 10188290 10188291 10188292 10188293 Designation Dc SD2050A-0300-150-04R1 3 SD2050A-0400-200-04R1 4 SD2050A-0450-225-06R1 4,5 SD2050A-0500-250-06R1 5 SD2050A-0600-300-06R1 6 SD2050A-0635-318-08R1 6,35 SD2060A-0300-180-04R1 3 SD2060A-0400-240-04R1 4 SD2060A-0450-270-06R1 4,5 SD2060A-0500-300-06R1 5 Scan the QR code and find out more information