I not only crimped the tabs in one handle, I also soldered the copper wire to it. Had a 12 guage wire that worked really well. 16 or 18 guage might be a problem crimping to it. Not there is a big oval gap in the front teeth of the clamp. This can make it difficult clamping to electronic wires and connectors. The clamps may be too large for small spaces of electrical connectors. I used this for clamping a high watt (50w) 3.3k bleed resistor to a microwave case on one side and a screwdriver on the other. Then used the screwdriver on the capacitor terminals.