Wire Insertion Tool Set Includes 1/4 O.D. and 3/8 O.D. . Wire Insertion Tools for Use When Installing Wires for Audio Electronics, Aftermarket Lighting, Alarm Systems and Much More.. With a sharp point on the end and palm size handle, these tools provide extra leverage to pierce through firewalls, rubber grommets and panels.. The 10-1/2 steel tube provides easy access to feed wires through the firewall. . Tools are available individually; 60950- 1/4 O.D. Insertion tool and 60960- 3/8 O.D. Insertion tool. 61030 Yes -