SDSPlusDrill

High-speed steel, also known as high-speed tool steel or front steel, commonly called HSS, the main chemical components are carbon, silicon, manganese, phosphorus, sulfur, chromium, molybdenum, nickel, and tungsten. The advantage of adding tungsten and chromium to the front steel is to enhance the softening resistance of the product when heated, thereby increasing its cutting speed.

Tungsten carbide, also known as cemented carbide, is an alloy material based on refractory metal complex compounds and metal as a binder. Common hard compounds are tungsten carbide, cobalt carbide, niobium carbide, titanium carbide, tantalum carbide, etc., and common binders are cobalt, nickel, iron, titanium, etc.

What isSDSPlus

The compressive strength of commonly used tungsten carbide is 6000 MPa and the hardness is 69~81 HRC. When the temperature rises to 900~1000℃, the hardness can still be maintained at about 60 HRC. In addition, it has good strength, toughness, wear resistance, heat resistance, and corrosion resistance. However, the specific performance indicators of cemented carbide are closely related to its chemical composition and raw material ratio.

Basically I had to use a breaker last weekend, it was clear I did not need the “heavy duty” as I did not have 6” of solid concrete, but the descriptions of the other options confused me.

SDSvsSDSPlus

The production process of high-speed steel is generally: frequency furnace smelting, out-of-furnace refining, vacuum degassing, electro slag remelting, fast forging machine, forging hammer, precision machine blanking, hot rolling into products, plate element, and drawing into products.

If your doing domestic builds, small-medium shops, garden patios, sheds etc SDS+ is great. If your working on a tower-block, building a mall, shop from scratch, SDS Max. It's not just about the bit but the tool your connecting it to. An 18V set of tools are great with SDS+ for example. The battery pack you choose, if using cordless, will also have a big bearing on the quality of the end job. If buying or using corded make sure the voltage is compatible if working of a generator on site.

Sds definition drillvs hammerdrill

It sounds like for your application, SDS Plus would be the way to go, given that they are generally less expensive, and you don't have really tough masonry work to do.

Really I would suggest using SDS Max on the larger projects where you are doing some Demo. SDS Plus is however a lot lighter and easier to move around with, as long as you dont need to go super heavy duty.

AreSDSandSDSPlus interchangeable

In addition to tungsten carbide materials, cutting tools can also be produced with high-speed steel materials. However, due to the different chemical composition and production methods of tungsten carbide and high-speed steel, the quality of the prepared cutting tools is also different.

High-speed steel is mainly used to manufacture cutting tools (such as drills, taps, and saw blades) and precision tools (such as hobs, gear shapers, and broaches).

In short, sds + is for light duty applications (drilling for ledger boards and light demo), sds max is for people who work with and demolish concrete professionally. I build decks and fences. For me sds + does everything I could ask. Good for breaking up old peirs, drilling multiple large (up to 1") holes in brick or concrete.

Sds definition drillsizes

You can find some good photos of the various bit types at www.BuildersDepot.com. Link: https://www.buildersdepot.com/carbide-drill-bits.html

Except for cutting tools that tungsten carbide is also used to make mining, measuring, mold, wear-resistant, high-temperature, etc tools as well.

Sds definition drillbit

The flexural strength of general-purpose high-speed steel is 3.0-3.4 GPa, the impact toughness is 0.18-0.32 MJ/m2, and the hardness is 62-65 HRC (when the temperature rises to 600°C that the hardness will be 48.5 HRC). It can be seen that high-speed steel has the characteristics of good strength, good wear resistance, medium heat resistance, and poor thermoplasticity. Of course, the specific performance indicators of high-speed steel are closely related to its chemical composition and raw material ratio.

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SDS Plus is an improvement on the original SDS system, but remains compatible with SDS bits, and is now the most commonly seen on the market.

Mostly under the same conditions, the cutting speed of tungsten carbide tools is 4 to 7 times higher than that of high-speed steel, and the life is 5 to 80 times higher.