Issue link: https://www.e-digitaleditions.com/i/1490054
170 15 Dental Equipment & Instrumentation www.vetinst.com 170 5 External Fixation www.vetinst.com Standard spanners, sockets or combination spanners are available for all clamp sizes see reference chart. 001565 Spanner Medium 8mm 001564 Spanner Large 10mm 86012 Socket Drive Handle 86104 Small Socket 7mm 86105 Medium Socket 8mm 86107 Large Socket 10mm Useful for tightening of clamps in that the wrench can be 'spun' using the shaft. 001565T Medium 'T' Wrench - 8mm 001564T Large 'T' Wrench - 10mm Spanners & Wrenches 'T' Bar Wrenches Pre-Drilling ESF Pin Tracts Pre-drilling a pin tract hole in the bone into which the ESF pin is subsequently inserted is very important as the ESF pins do not have drilling ends. Otherwise insertion of an ESF pin directly into the bone may cause impaction, micro-fracturing of the bone & excessive heat production with bone necrosis, all of which can lead to pin loosening. A drill bit that is about 10% smaller than the shank (core) diameter of the pin, or at least 0.1mm smaller should be used. A slow speed (electric) drill at about 150rpm is advisable, using flush to cool the pin & minimise heat generated in the bone that could cause bone necrosis & pin loosening. An appropriate drill guide is used to protect the soft tissues & minimise drill wobble & skidding. Once the hole is drilled, a K-wire can be used to maintain the pin tract (before the drill guide is removed) so it can be easily re-identified once the ESF pin is ready to be inserted. H090202 1.9mm Pre-Drill For 2.0mm Shank Positive Pin H090203 2.3mm Pre-Drill For 2.4mm Shank Positive Pin H090205 3.0mm Pre-Drill For 3.2mm Shank Positive Pin H090207 3.8mm Pre-Drill For 4.0mm Shank Positive Pin H090101 1.5mm Pre-Drill For 2.0mm Shank Negative Pin H090102 2.0mm Pre-Drill For 2.4mm Shank Negative Pin H090104 2.7mm Pre-Drill For 3.2mm Shank Negative Pin H090106L 3.5mm Pre-Drill For 4.0mm Shank Negative Pin