217ft Black Diamond 0.105" Trimmer Line Compatible with Echo 330105071

What It Is

This is a 217-foot spool of 0.105-inch diameter Black Diamond trimmer line, designed for gas and electric string trimmers. It’s a heavy-duty, square-shaped line meant for thick grass, weeds, and light brush, and is listed as compatible with Echo part 330105071.

Fitment & Compatibility

Before buying, confirm your trimmer head accepts 0.105-inch line (not 0.080 or 0.095). This line fits most trimmer heads that use pre-cut or bulk line, but check your trimmer’s max line diameter in the manual—0.105 is thicker than standard, so it may not feed properly in heads rated for thinner line. It’s a direct match for Echo models that use OEM part 330105071, but it’s aftermarket, so verify your trimmer’s brand and model list (e.g., Echo SRM-225, PAS-225). Measure your existing line diameter with calipers if unsure. Not for electric trimmers with smaller line capacity.

Key Things to Know

• Quality: Black Diamond is a known aftermarket brand—this line is durable and resists breaking, but it’s stiffer than standard round line, which can cause feed issues in some bump-feed heads.
• Installation: Easy to load if you cut it to length (20-30 feet per pass). The square shape cuts better but requires a trimmer head that can handle thicker line without jamming.
• Gotcha: 0.105-inch line wears faster than 0.095 on heavy use, so you’ll reload more often. Also, it’s not universal—some trimmer heads won’t accept bulk line, only pre-cut strips.
• Value: 217 feet for $23.88 is competitive; you get about 7-10 refills per spool, depending on your trimmer head’s capacity.

Should You Buy It

Buy this if you have a gas trimmer rated for 0.105-inch line (especially Echo models) and need a tough, square-shaped line for overgrown areas. Skip it if your trimmer head is finicky with thick line or if you prefer a softer, round line for lighter trimming.