Klein Tools D257-4C Diagonal Cutting Pliers, Electronics, Tapered Nose, Spring, 4-Inch

No. The D257-4C is not insulated. The plastic-dipped handles are there for grip and identification, not shock protection, so de-energize the circuit before cutting. If you need to work on energized conductors, you need a tool rated and marked as insulated, not this one.

The D257-4C is built for small electronics and control wiring, not building conductors. Jaw capacity is 0.438 in (1.1 cm) with a jaw length of only 0.518 in and jaw thickness of 0.24 in, so it is sized for fine leads, component legs and low-gauge hookup wire. For THHN branch-circuit wire or anything heavier, step up to a full-size 8-inch side cutter.

Semi-flush. The beveled cutting edges leave a small pip on the cut end rather than a dead-flat finish. That is the usual choice for general electronics work where a little burr is acceptable; if you are trimming component leads on a board and need no protrusion at all, look for a true flush-cut cutter instead.

That is what the tapered nose is for. Overall length is 4.26 in (10.8 cm) with a 2.75 in handle and a jaw width of 0.438 in, so the tip gets into tight enclosures and lets you cut close to the tip without fouling adjacent wiring. At 0.12 lbs it rides easily in a shirt pocket or pouch.

No. The D257-4C has no tether point and is not tether capable, so it should not be used on elevated work where a drop-prevention system is required. For overhead or aerial work, specify a tool built with a tether attachment.

Yes, they are spring-loaded for self-opening action, so the jaws reopen after every cut. On repetitive trimming work that cuts hand fatigue noticeably, since you are not prying the handles apart each time.

The cutting knives are induction-hardened for long edge life and the tool is forged in the USA from US-made tool steel. The joint is hot-riveted, which is what keeps the handle action smooth and stops the wobble you get in a loose-jointed plier after a few months of service work.

Order Klein Tools D257-4C. That is the manufacturer part number for the 4-inch spring-loaded, tapered-nose electronics diagonal cutting plier with semi-flush knives.

Light blue plastic-dipped handles. Klein uses handle color as a quick visual ID, so the D257-4C stands out from black- or red-handled side cutters in a fleet of tools. Useful if you are standardizing a crew's kits and want the electronics cutter identifiable at a glance.