Dart Red Ten ULTRA LMI-15 Landscaper Hard Multi Material Diamond Blade

The Dart Red Ten ULTRA LMI-15 is a hard multi material diamond blade built specifically for landscaping work involving dense, abrasive stone and concrete products. It uses laser welded 15mm turbo segments that cut quickly through hard materials while lasting considerably longer than standard segment heights. The reinforced flange adds rigidity under load, and the cooling holes allow heat to dissipate during extended cutting runs without the blade wandering or glazing over.

This blade sits in the harder end of the diamond blade spectrum, which means it performs best on dense, non-abrasive materials. That is exactly what most landscaping and groundworks jobs involve: granite setts, concrete kerbs, Indian sandstone, limestone flags, and block paving. If you are cutting a driveway or a patio, laying kerbing, or breaking out and re-laying old slab work, the LMI-15 handles that without complaint.

Where the Dart Red Ten ULTRA LMI-15 Gets Used

General contractors and landscapers reach for this blade when they are cutting concrete slabs, Indian stone, granite, limestone, block paving, and clay or brick products. The turbo segment profile helps it bite into these hard materials cleanly, giving a predictable cut line rather than chipping or skating across the surface. It is also capable of light-duty cutting on abrasive breeze blocks, reconstituted stone, sandstone, roof tiles, and thin metal, though for regular work on abrasive materials you would be better served by a softer-bonded blade.

The blade range runs from 115mm through to 350mm, which covers angle grinders, cut-off saws, and larger disc cutters. The 115mm and 125mm sizes fit standard angle grinders for detail cuts and close-quarter work. The 230mm suits most 9-inch angle grinders and smaller table saws. The 300mm and 350mm blades, with their 20mm bore, are intended for larger floor saws and disc cutters where you need more depth per pass on kerbs, thick slabs, or block courses.

Segment Design and Build Quality

The 15mm segment height is a meaningful advantage over entry-level blades that typically run at 10mm. More segment material means the blade remains in service longer before the segments wear back to the steel core. Laser welding, rather than sintering, bonds the segments securely and reduces the risk of segment loss under load, which matters when you are pushing a 350mm blade through a granite kerb at full depth. The turbo profile increases the cutting surface contact, which speeds up cutting and reduces the heat build-up that can cause premature segment glazing.

This is a professional-grade blade at a sensible price point. For landscapers cutting slabs and hard stone day in, day out, it delivers the combination of cutting speed, segment life, and mechanical reliability that keeps jobs moving. Light enough for occasional users on weekend work, durable enough for regular trade use across a full season.