--- title: S686 Slotters and SLT inserts description: "What types of S686 slotters and inserts SLT SAU offers?\nWhat are the features and the advantages of using Slotters? \nRead the details below." image: https://blog.sautool.com/hubfs/S686-2.jpg --- [![logo-sau-blu@2x](https://blog.sautool.com/hubfs/logo-sau-blu@2x.svg)](https://blog.sautool.com/blog?hsLang=en) [GO TO SAUTOOL.COM](https://www.sautool.com/en) [Contact us](https://sautool.com/en/contact-us) News # S686 Slotters and SLT inserts What types of S686 slotters and inserts SLT SAU offers? What are the features and the advantages of using Slotters? Read the details below. [SAU Team](https://blog.sautool.com/en/author/sau-team) Jul 21, 2025 --- The slotters are used to carry out internal profiling operations such as keyways. The body of S686 slotters is made of high-alloy nickel-plated steel, particularly efficient for the application of the tool. SLT inserts are both carbide and HSS. In less stable and critical workmanship they are recommended in HSS, in the rest of the standard applications it is preferable to use the carbide ones. Keep reading. ## With the S686 slotters you will have many advantages: - Machining is done in machine cycle without further recovery on other machines - time saving - You don’t need other machines - Greater precision in finishing ## Tools range slotter tools S686 The range offered by Sau starts from tools that can fit in a minimum hole of 9.5 mm to tools that fit in a minimum hole of 24.5 mm with two lengths for each size ranging from 30 to 140 mm. The S686 slotters have two connections Ø 25 and Ø 32 mm with double coolant supply to the tool centre directly on the cutting edge. ![S686-page](https://blog.sautool.com/hs-fs/hubfs/S686-page.jpg?width=619&height=875&name=S686-page.jpg) ## SLT inserts SLT inserts are of two types: carbide and HSS. Carbide insert is available in F7230 PVD coating to increase insert life and finish, ensuring consistent execution tolerance. SLT inserts have width from 3 mm to 12 mm with three different tolerances H7, D10 and C11. ## **![SLT-080-1006-H7-F7230](https://blog.sautool.com/hs-fs/hubfs/SLT-080-1006-H7-F7230.png?width=120&height=171&name=SLT-080-1006-H7-F7230.png)** ## **SLT special inserts** At the customer’s request, Sau can carry out tolerances and sizes not in the catalogue and realized ad hoc on the individual requirement thanks to the specialized technical department with over 40 years of know-how. There is also the possibility, in special inserts, to add the bevel to the processing. ![SLT-special-page](https://blog.sautool.com/hs-fs/hubfs/SLT-special-page.jpg?width=619&height=875&name=SLT-special-page.jpg) ## **Fields of application of the S686 slotting tools** The range of S686 slotters are particularly suitable for machining on CNC lathes, excellent performance even on multitasking machines and machining centers as well as on manual machines. ## Frame adapter S686-D for slotting tools The S686-D adapter allows you to apply the S686 slotter on the slotting machine, thus allowing it to be used even on traditional machines. The adapter is fitted with a connection for internal lubrication. The advantage is that it is easy to use and can be used in machines without adjustment. ## **![S686-D32](https://blog.sautool.com/hs-fs/hubfs/S686-D32.png?width=500&height=333&name=S686-D32.png)** ## Fields of application for slotting tools S686 The fields of application are many and include all sectors, from auto motive to agriculture, from ground handling to biomedicine, from automation to food. ## Machining materials S686 Suitable for processing all ISO metals P M K N S H. ![S686-page-technical-data](https://blog.sautool.com/hs-fs/hubfs/S686-page-technical-data.jpg?width=619&height=875&name=S686-page-technical-data.jpg) ## **Conclusions** The versatility of the tools and the possibility of "[special](https://sautool.com/en/services#custom-works-section)" customization of the inserts, makes the slotting program SAU a valuable resource for companies looking for reliable solutions. SAU remains at the forefront in providing products that meet the ever-growing needs of the market. To find out more about our S686 slotting tools and how they can improve your production processes, [contact us today](https://sautool.com/en/contact-us). Sau Team *SAU - Quality Tools Engineering since 1982.*   [News](https://blog.sautool.com/en/tag/news) [Turning](https://blog.sautool.com/en/tag/turning) ## Similar posts News ### [Flat Head Carbide Drills SD1800 with Bronze coating](https://blog.sautool.com/en/flat-head-carbide-drills-sd1800?hsLang=en) Which carbide flat-head drills does SAU offer? What are their features and the advantages of using them? Read it below. SAU Team Feb 7, 2025 News ### [WHAT IS HONING AND WHAT IS IT FOR?](https://blog.sautool.com/en/honing-what-is-for?hsLang=en) What is the honing on carbide inserts and tools? In this article you will understand what it is and what the advanced technology of SAU is. 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