Steelex Plus D2125 - Cobalt Drill Bit - 5/16

Steelex Plus D2125 - Cobalt Drill Bit - 5/16"

Marsoni

M251S

$18.46

Get it in 3 business days with 1 day shipping. Friday, May 29

Steelex Plus D2125 - Cobalt Drill Bit - 5/16"This premium Cobalt Drill Bit is engineered to handle high tensile steels and hard to machine alloysand features a 135 split point. Cobalt Alloy bits turn faster without overheating due to their resistance to heat and stress. The 135 split point enables the drill to use less thrust and eliminates the tendency of the drill point to walk, which makes it great for use in portable drills or drill presses. Cobalt Alloy bits also retain their edge sharpness

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I bought these mostly because I kept hearing people talk about bamboo pillowcases and honestly thought it sounded a little overhyped, but I totally get it now. The first thing I noticed was how cool they felt compared to regular cotton. I tend to get warm when I sleep and flip my pillow a million times during the night looking for the cold side, and these actually stay noticeably cooler longer. They also feel really soft without having that weird slippery texture some silky pillowcases have. My skin has been less irritated lately and my hair definitely looks less frizzy in the mornings. I have thick hair that tangles easily overnight, and these have helped more than I expected. Another thing I appreciate is that they’ve washed well so far. I was worried they’d pill or lose softness after a wash cycle, but they still feel smooth and nice. They also just make the bed feel cleaner and more comfortable overall. One of those small upgrades that ends up making a bigger difference than you’d think.

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Reviewed in the United States on June 2, 2026