High Temp Marker, Black, Medium, Threaded Cap ORS NASCO 72 tooth ratchet requires only a 72 tooth ratchet requires only a 5 degree swing arc to turn a fastener Teardrop ratchet head for improved access Flush mounted on off switch allow better access in tight spaces Quick release allows for fast socket exchanges Sockets feature off corner loading technology to virtually eliminate fastener rounding Designed for flange sealing with excellent oil resistance and high torque applications Remains flexible and withstands high vibration Outstanding oil and shop fluid resistance Non corrosive Fiber tip Pigmented and oil based Pen cap clip fits on pocket or clipboard Marks become permanent and fused when heated