Indexable Lathe Turning Tool Holder 1/2'' 12mm-Shank 7 Pcs Metal Lathe Tool Holder Set for Turning Grooving Threading Boring with 14 Pcs Carbide Inserts Turning Inserts Carbide Turning Tool Set

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I purchased this 21-piece indexable lathe turning tool kit to upgrade from my old brazed carbide bits, and it has completely revolutionized my machining work. If you are tired of stopping your projects to re-grind tool tips on a bench grinder, switching to this 1/2-inch (12mm) shank indexable set is the absolute best choice you can make for your workshop. The build quality of the 7-piece tool holder set is outstanding. Each holder is machined from heavy-duty steel with a flawless black oxide finish for excellent rust resistance, and they sit perfectly flush inside a standard quick-change tool post with zero flexing or vibration under load. What makes this kit a phenomenal value is the inclusion of the 14-piece replacement carbide inserts. The inserts are incredibly hard, ground to a razor-sharp edge, and slide onto the holders with perfect alignment. When a cutting edge finally wears down, you just use the included wrenches to rotate the insert to a fresh corner in seconds and keep right on turning. The variety in this kit covers every single operation you could possibly need, including turning, facing, boring, parting, and precision threading. I have used these to cut clean profiles into solid stainless steel rods, brass fittings, and aluminum spacers, and they slice through the material like butter, leaving behind a gorgeous, mirror-like surface finish. Having all the holders, inserts, and torx keys neatly organized makes it incredibly easy to manage your tooling. If you want professional machine-shop results, high versatility, and a massive boost in efficiency, this comprehensive kit is worth every single penny.

Very good set for a Hobbiest with Metal working experience

Satisfactory. Good for the cost.

I have an old, clapped-out lathe that gets used at random times, mostly when a project goes off the rails and I need to make, modify or repair something in a HURRY. Because of this, I never know what I'll be making or what material I'll be using. Last time I fired up the lathe, I was modifying a brass hose barb to replace a broken fitting on a plastic car radiator. This was on a Sunday afternoon and I needed that hose barb 5 minutes ago. I bought this kit because I'm not the best at grinding HSS tools for the lathe. I wanted something I could throw on the lathe and get to work, rather than take 3 or 4 attempts to get tool geometry right, hone the edge, etc. This set is inexpensive, uses commonly available inserts, and has several different tool formats. I figured I could buy an entry-level set of tools and then upgrade if/when I needed to. So far, I haven't needed to. I've used these tools on a couple of different projects and so far they've been fine. I've turned brass and mild steel, but also used them to reduce the outer diameter of a tool steel spark plug socket for use in a motorcycle engine. The tool left a pretty good surface finish even though my lathe is worn out and tends to fight me a bit, and it cut the relatively hard steel without a single complaint. If you need an entry level set of carbide lathe tools for next to nothing, you could do a lot worse than this set. The inserts have survived some interrupted cuts and other mild abuse that I for sure thought would have done some damage. So far, I haven't had to switch out a single insert. I'm impressed. This is a perfect kit for a home machinist on a shoestring budget (like me), or for someone who doesn't want to spend top dollar while dipping their toes into the machining world. I'll still keep HSS tools around for specific uses (form tools, cutting plastic or softer metals, etc.) but these will probably do the lion's share of the work in the future.