Use a rubber-jacketed cord with a high strand count for a retractable reel.

You want SJEOOW or SOOW — not the cheap vinyl SPT or SJT cord that stiffens and cracks. The key is the insulation: rubber (or rubber-like neoprene) stays flexible in cold weather and after thousands of wraps and pulls. Also look for a high strand count (like 300+ strands per conductor) because that’s what handles the constant bending without breaking wires.

Most retractable reels come with a vinyl SJT cord that’s fine for occasional use, but if you’re pulling a corded drill on and off all day, it’ll fail at the drum in a year. Upgrade to a rubber cord with a 14/3 gauge (good for 15 amps) and you’ll get years of flexing without the “why won’t my drill turn on?” moment.

A common spec: 14/3 SJEOOW – buy a 50-foot length and swap out the reel’s original cord. Cost about $40-60, worth every penny. If you’re building a reel from scratch, SOOW is even tougher but stiffer.

SJEOOW is the sweet spot: flexible, abrasion-resistant, and rated for hard usage in a workshop. Don’t use a cord that’s only rated for “light duty” on a reel.