November 9, 2019 by INDO SERVICES INDO SERVICES M4 thread styli (Ø 7 mm )Extensions /Adaptor M4/M3 (Steel) Search Order No. Material wt L (mm) 20-7-3 NV Steel 2.8g 20.0 M4 thread styli (Ø 7 mm )Extensions/ Adaptor M4/ M3 ( Ceramic ) Search Order No. Material wt L (mm) 50-7-3 NVK Ceramic 5.2g 50.0 75-7-3 NVK Ceramic 6.6g 75.0 100-7-3 NVK Ceramic 8.4g 100.0 M4 thread styli (Ø 7 mm )Adaptor for styli rotary ( Type F ) Search Order No. Material wt 15.0-18-7 NTHF Steel 11.9g M4 thread styli (Ø 7 mm )Crash Protection adaptor Search Order No. Material wt 8-7 NSR Steel 1.9g