® Thread Turning Toolholders External Toolholders With Top Clamp H B F B L Ordering CodeRight Hand L B=H L F InsertScrew Clamp AnvilScrew TorxKey RHAnvil LHAnvil DER 1212 H16 16 12 100 16 S16 C16 A16S K16 AE16 AI16 DER 1616 H16 16 16 100 16 S16 C16 A16S K16 AE16 AI16 DER 2020 K16 16 20 125 20 S16 C16 A16S K16 AE16 AI16 DER 2525 M16 16 25 150 25 S16 C16 A16S K16 AE16 AI16 *DER 2525 M22 22 25 150 25 S22 C22 A22 K22 AE22 AI22 For LEFT HAND toolholders specify DEL instead of DER Toolholders are made with a 1.5˚ Helix Angle. For other Helix Angles please see helix angle chart in the technical section of this catalog. L Two clamping methods can be used: screw or top clamp. *Use K21 torx key for C22 clamp H B Vertical Toolholders F B Ordering CodeRight Hand B=H L F Insert TorxScrewKey SER 1616 H16V 16 16 100 18 S16S K16 SER 2020 K16V 16 20 125 22 S16S K16 SER 2525 M16V 16 25 150 27 S16S K16 SER 2525 M22V 22 25 150 27.5 S22S K22 SER 3232 P27V-T10 27 32 170 36 S27 K27 L Slim Throat Toolholders H B F B Ordering CodeRight Hand B=H L F Insert TorxScrewKey SER 1616 H16VS 16 16 100 18 S16S K16 SER 2020 K16VS 16 20 125 22 S16S K16 SER 2525 M16VS 16 25 150 27 S16S K16 SER 2525 M22VS 22 25 150 27 S22S K22 A02-5