Indexable Insert Drills WDX
■ General Features The SumiDrill WDX type has excellent cutting balance that provides stable hole drilling on a wide range of work materials from general steel to stainless steel and aluminum alloy. Available in three original chipbreaker styles, the inserts feature improved chip control and reduced cutting force for use in low- rigidity contexts.
Design Cutting force of central insert ≈ that peripheral blade
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■ Features and Applications ● Balanced Design
Central Insert
Peripheral Insert
Cutting force during drilling is balanced between central insert and peripheral insert. The relative position of each insert is optimized to provide stable drilling. ● Excellent Chip Control The chip evacuation direction can be controlled with the chip control groove at the center of the breaker, enabling good chip control. ● Versatile Tool for a Variety of Machining Applications Select among three types of breakers for different applications, allowing optimal drilling for a variety of work materials and conditions. Suitable for a wide range of applications including hole expansion, spot facing,
Chip control groove in each cutting edge
external turning and internal boring. ● Economical Four-Cornered Insert
This product has an extremely economical design where a single insert type can be used for the central insert or peripheral insert, with two corners for each position - a total of four corners.
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Type
For low feed with chip control
For Non-ferrous Metal drilling
Features
General-purpose
Strong Edge Type
Central Insert
Appearance
Figure
Peripheral Insert
■ Performance
● Balanced Design (Comparison of Horizontal Component Values)
● Finishing is easy because the hole bottom is almost flat.
Ɣ Improved chip control Drill: WDX 200D3S25 (ø20.0) Part Mterial: 304 Stainless Steel Cutting Conditions: v c =427 SFM, f =0.0024 IPR H =1.98”, Wet WDX
Balance is maintained at the through hole entry and exit points, and drilling is stable. SumiDrill WDX Type
Bottom of hole after drilling with WDX200D3S25
Direction of drilling
Smooth entry
No problems with smaller hole diameters at exit point
Conventional and Competitor's Products
Conventional and Competitor's Products
Bottom of hole after drilling with conventional tool (ø20)
Direction of drilling
Chatter on entry (cause of chipping of insert)
Causes smaller hole diameter at exit point
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