Do these sockets work with my current ratchet and breaker bar?

Yes—these are standard 1/2 inch drive, so they fit any 1/2 inch ratchet, breaker bar, or impact wrench you already own.

Will these strip or round off bolt heads?

The set includes both deep and shallow sockets to match different bolt designs. Use the shallow socket for low-profile heads, deep for recessed fasteners. Proper fit prevents rounding.

What size bolts do these actually fit?

The ten-piece range covers the fasteners you hit most—lug nuts, oil drain plugs, caliper bolts, suspension hardware. Check your vehicle's service manual for exact bolt sizes on your specific job.