WIDIA
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Stainless steel and other hard-to-cut materials—commonly used in automotive and aerospace components—pose significant machining challenges.Short tool life and inconsistent dimensional accuracy are major factors that drive up production costs.
This article introduces three carbide drill series from WIDIA and explores how each product addresses these challenges through distinct design and material technologies.
Source: WIDIA Official Website
https://www.widia.com/de/en/home.html
https://www.widia.com/de/en/home.html
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Applications for WIDIA
WIDIA’s carbide drills are ideal for manufacturers aiming to reduce tool change frequency and per-part costs when drilling stainless steel, where tool wear is typically severe.
The difficulty of machining stainless steel lies in its inherent “stickiness” and the high heat generated during cutting.
WIDIA tackles these issues through specially engineered coatings that resist heat and wear, and cutting-edge geometries that promote smooth chip evacuation—reducing machining instability and prolonging tool life.
Note: Performance may vary depending on tool type, cutting speed, feed rate, coolant type, and machine rigidity.
Key Products from WIDIA
VariDrill（VDS）
Source: WIDIA Official Website
https://www.widia.com/de/en/products/fam.varidrill-5-x-d-vds202a-vds402a-a-shank.100006849.html?pdpQuery=%3Arelevance%3AobsoleteFacet%3Afalse%3AallCategoriesWIDIA%3A24064245%3AallCategoriesWIDIA%3A46993284
https://www.widia.com/de/en/products/fam.varidrill-5-x-d-vds202a-vds402a-a-shank.100006849.html?pdpQuery=%3Arelevance%3AobsoleteFacet%3Afalse%3AallCategoriesWIDIA%3A24064245%3AallCategoriesWIDIA%3A46993284
Overview
The VariDrill (VDS) is a versatile, general-purpose drill capable of machining a wide range of materials—from steel and cast iron to stainless steel and non-ferrous metals—all with a single tool.
By replacing multiple material-specific drills with a single versatile tool, it helps reduce inventory and simplify tool management.
Compatible Materials
- Steel
- Stainless steel
- Cast iron
- Non-ferrous metals
- Hard-to-cut materials
*Source: WIDIA Official Website
（https://www.widia.com/de/en/products/fam.varidrill-3-x-d-vds201a-vds401a-a-shank.100006847.html）
（https://www.widia.com/de/en/products/fam.varidrill-3-x-d-vds201a-vds401a-a-shank.100006847.html）
Lineup
- 3×D
- 5×D
- 8×D
*Source: WIDIA Official Website
（https://www.widia.com/de/en/products/holemaking/solid-carbide-drills.html）
（https://www.widia.com/de/en/products/holemaking/solid-carbide-drills.html）
TOP DRILL S
Source: WIDIA Official Website
https://www.widia.com/de/en/products/fam.tds412a-a-shank-wk15pd-5-x-d.100149413.html?pdpQuery=%3Arelevance%3AobsoleteFacet%3Afalse%3AallCategoriesWIDIA%3A24064245%3AallCategoriesWIDIA%3A46993286
https://www.widia.com/de/en/products/fam.tds412a-a-shank-wk15pd-5-x-d.100149413.html?pdpQuery=%3Arelevance%3AobsoleteFacet%3Afalse%3AallCategoriesWIDIA%3A24064245%3AallCategoriesWIDIA%3A46993286
Overview
This carbide drill series is available in two types—one optimized for steel and cast iron, and the other for stainless steel.
Each type features cutting-edge geometry and surface coatings specifically designed to match the properties of the target materials, such as hardness and ductility.
The TDS Series excels in unstable drilling conditions, including angled surfaces and intersecting holes where the drill tip tends to slip or experience high stress. Even in these challenging applications, the drill maintains stability and minimizes deflection, preventing hole deviation.
By reducing defective parts and enabling continuous, stable mass production without frequent machine stoppages, these drills significantly enhance overall manufacturing productivity.
Compatible Materials
- Steel
- Stainless steel
- Hard-to-cut materials
*Source: WIDIA Official Website
（https://www.widia.com/de/en/products/fam.tds451a-a-shank-wm15pd-3-x-d.100106320.html）
（https://www.widia.com/de/en/products/fam.tds451a-a-shank-wm15pd-3-x-d.100106320.html）
Lineup
- 3×D
- 5×D
- 8×D
*Source: WIDIA Official Website
（https://www.widia.com/de/en/products/holemaking/solid-carbide-drills.html）
（https://www.widia.com/de/en/products/holemaking/solid-carbide-drills.html）
TOP DRILL S+
Source: WIDIA Official Website
https://www.widia.com/dk/en/products/fam.top-drill-s-12-x-d-tds504a-a-shank.100007174.html?pdpQuery=%3Arelevance%3AobsoleteFacet%3Afalse%3AallCategoriesWIDIA%3A24064245%3AallCategoriesWIDIA%3A46993290
https://www.widia.com/dk/en/products/fam.top-drill-s-12-x-d-tds504a-a-shank.100007174.html?pdpQuery=%3Arelevance%3AobsoleteFacet%3Afalse%3AallCategoriesWIDIA%3A24064245%3AallCategoriesWIDIA%3A46993290
Overview
The TOP DRILL S+ is a solid carbide drill designed specifically for deep-hole applications, capable of drilling depths up to 12 times the tool diameter.
It features a unique four-margin design, where the margins support the drill body along the hole wall. Compared to standard two-margin drills, this design provides greater stability and guidance, minimizing runout and ensuring straight, precise holes.
In many cases, the need for a pilot hole—typically required before deep drilling—can be eliminated, reducing setup and tool-change time. The result is a highly efficient drilling process that delivers both accuracy and productivity.
Compatible Materials
- Steel
- Stainless steel
- Cast iron
*Source: WIDIA Official Website
（https://www.widia.com/de/en/products/fam.top-drill-s-12-x-d-tds504a-a-shank.100007174.html）
（https://www.widia.com/de/en/products/fam.top-drill-s-12-x-d-tds504a-a-shank.100007174.html）
Lineup
- 12×D
*Source: WIDIA Official Website
（https://www.widia.com/de/en/products/holemaking/solid-carbide-drills.html）
（https://www.widia.com/de/en/products/holemaking/solid-carbide-drills.html）
For more detailed technical information and product comparisons, visit our special feature on carbide drills for stainless steel.
The page highlights three top manufacturers with proven strengths in stainless steel machining, including in-depth coverage of recommended tools for this demanding material.
After-Sales Support from WIDIA
WIDIA offers regrinding and recoating services for used carbide drills.
Instead of discarding worn tools, customers can have them restored for continued use—significantly reducing long-term costs compared to repeatedly purchasing new tools.
Each tool is reconditioned by WIDIA’s skilled technicians, restoring its cutting performance to near-new condition for reliable, consistent machining results.
Company Information
| Address | 1600 Technology Way, Latrobe, PA 15650, USA |
|---|---|
| Phone Number | +1 724-539-5000 |
| Official Website | https://www.widia.com/us/en/home.html |