Scope: for two-wire connection, such as telephone lines, network cable continuedFeatures: insulation, safety, easy to use simple, only need to use a vise to complete the resumption of pressure, such as with the shop dedicated wiring clamp connection, the effect is better, faster, 100% connected, in the phone, network cabling Project, played a small roleK1Applicable core: 0.4-0.7 mmK2 Applicable core: 0.4-0.9 mmK3 Applicable core: 0.4-0.9 mm