WIDIA™ Top Cut 4™ New Generation Indexable Drilling System

Flexible and Versatile

Top Cut 4 indexable drills are equipped with centering capabilities and inboard and outboard inserts delivering outstanding flexibility and versatility in multiple materials. This indexable drill portfolio encompasses dual four-edged front inserts, instead of a traditional drill point geometry, enabling it to perform in a variety of applications on multiple materials. This drill is capable of supporting a variety of applications including through and cross-hole, inclined entry and exit, 45-degree corner, half cylindrical, concave, blind, and chain drilling.

Features and Benefits:

  • Standard diameter range covering 12-68mm
  • 4 real cutting edges per insert
  • 4 grades to achieve higher tool life at accelerated speeds: WU25CH, WU40PH, WPK10CH, WN10PH
  • X-offset design to adjust diameter size on turning machines and optimize tolerances on machining centers
  • Coolant channels exit right behind the cutting edge
  • Differentiated insert shapes to avoid grade mixing between central and periphery inserts
  • Optimized flutes to contain chips during machining
  • Flanged shank to increase the overall drill stability in deep-drilling applications

YIH TROUN INDEXABLE INSERT CENTER DRILL

The indexable insert of YIH TROUN Center Drill is made from special carbide materials, it provides a sturdy and robust drill bit and offers the machining efficiency and tool life four times better than HSS center drills. With YIH TROUN Indexable Carbide Center Drill, users will get an overall 3 ~ 5 times cost saving from its supreme life time and the great time-reduction in frequently tool changing, re-centering and length calibrating.

YIH TROUN indexable center drill features sandwich plug-and-clamp construction as well as tapered key special design. It stays eccentricity ± 0.008mm, approaches zero eccentric in stationary status. It is a dedicated indexable center drill for center facing machining by lathe, milling machine and drilling machine.

The two cutting edges are designed on balanced positions to decrease the high feed rotating runout and secure a surprising kinetic equilibrium. YIH TROUN indexable center drill was designed with exclusive geometry on the engage point which gives awesome stability that conduces to excellent verticality precision on pilot center drilling and reaches ≤ Ra0.36 cleanliness on machining surfaces.

Whenever change tool, users must calibrate the tool length and eccentric point of the traditional solid center drill. YIH TROUN has developed a unique centralizer exclusively for the indexable center drill, it brings manufactures a fast plug-and-perform solution to help reducing the loss of production capacities caused by the suspension of work.

When using the dual-services centralizer, without removing the shank, even a junior machine operator can change the indexable insert in a minute and secure a surprising positioning accuracy at the same time.

Great shareability

Each shank of the center drill is suitable for maximum 11 types of insert in different angles and sizes to different machining applications.

Applicable in different materials

To support machining a wide range of workpiece materials, YIH TROUN offers two grades of the indexable center drill in different grades of coating and cut edge:
1. E,K10 – Suitable for hole machining with aluminum, copper, alumino-nickel and non-ferrous materials.
2. ME,B350 – Widely suitable for hole machining with steel, harden alloy steel, stainless steel, cast iron and ductile iron materials.

Tool comparison

In the market, most of the indexable center drills were unsafely fastened on the surface side of shanks by only one tiny screw, no structural reinforcement clamping. Those kinds of drill bit keep high eccentricity over 0.02mm. Its low stabilities lead to greater cut resistance, can’t put a good cleanliness on the chamfering surface and it precipitates the drill bit chipping soon.

There are also numbers of center drill made of high speed steel (HSS), the low hardness material is easy to wear during the machining process; we all know the wore drill bit gives short too life, not work well on center positioning.
It happens the drill bit drifts over the material surface while entry engagement, the pre-hole will be led to verticality deviation. YIH TROUN Indexable Center Drills have an edge on minimal eccentricity tolerances, it conduces to extremely accurate center positioning and be very helpful to extend tool life, decrease the attrition rate and lower cost on post-processing, specially to small size or deep hole machining.

KenDrill HPR: Enhancing Drilling Efficiency Across Length Variations

Kennametal has expanded its HPR drilling platform with the latest addition, the KenDrill HPR, offering comprehensive drilling solutions with new 12xD and 50xD capabilities. This addition completes the lineup, ensuring a full range of length variations from 3xD to 50xD for enhanced versatility and performance in various drilling applications.

Comprehensive Range of Length Variations

The KenDrill HPR platform now boasts an extensive range of length variations, covering all requirements from 3xD to the newly introduced 50xD. This versatility allows users to select the optimal drill length for their specific application needs, whether it’s for shallow or deep hole drilling. The 12xD and 50xD solutions are particularly valuable for applications requiring deeper penetration, offering precision and efficiency.

Advanced HPR Point Design and Patented Coating

A standout feature of the KenDrill HPR is its application-specific HPR point design. This innovative design ensures superior drilling performance across different materials, particularly steels and cast iron. The HPR point design enhances the drill’s cutting efficiency, reduces the cutting forces, and improves overall drilling accuracy. Additionally, the patented coating on the KenDrill HPR further elevates its performance by providing excellent wear resistance and thermal stability. This coating ensures that the drill maintains its sharpness and effectiveness over prolonged use, even under challenging conditions.

Highly Polished Surface for Enhanced Performance

The KenDrill HPR is designed with a highly polished surface, which significantly reduces friction during drilling operations. This polished surface minimizes heat generation, reducing the risk of tool wear and extending the drill’s life. Furthermore, the reduced friction enables smoother chip evacuation, preventing chip clogging and ensuring a clean drilling process. This feature is particularly beneficial when working with low-pressure coolant systems, as it ensures effective cooling and chip removal even at lower coolant pressures.

Superior Chip Evacuation with Low-Pressure Coolant

Effective chip evacuation is crucial for maintaining drill performance and preventing damage to both the tool and the workpiece. The KenDrill HPR addresses this need with its optimized design for superior chip evacuation. The combination of the HPR point design, patented coating, and polished surface ensures that chips are efficiently removed from the drilling area, even when using low-pressure coolant systems. This efficient chip evacuation reduces the risk of overheating and tool breakage, further enhancing the drill’s reliability and longevity.

Conclusion

The KenDrill HPR represents a significant advancement in drilling technology, providing a robust, versatile, and efficient solution for a wide range of drilling applications. With its comprehensive range of length variations, application-specific HPR point design, patented coating, highly polished surface, and superior chip evacuation capabilities, the KenDrill HPR is set to become an indispensable tool for professionals working with steels and cast iron. Whether for shallow or deep drilling, the KenDrill HPR delivers precision, efficiency, and durability, making it a valuable addition to any drilling toolkit.