Telescopic Underground Spindel Extension kit T3 stainless steel (DIN 3223 C and E), rod stainless steel (1.4301), coupling sleeve (for spindle or shaft) and square protector (according to DIN 3223 C or E) made of AISI 304 stainless steel with stainless steel clip pin. Self-locking in every extension position thanks to a PE sealing sleeve on the square tube. Torques up to 500 Nm. Completely dirt and water repellent.