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Duracarb DDG30040 DP5320
Duracarb DDG30040 (Grade DP5320) is a high-performance grooving / turning insert (3 mm width, CDX up to 13 mm) engineered for long tool life, stable cutting, minimal downtime, and excellent wear resistance.
Boost your shop’s efficiency with the Duracarb DDG30040 DP5320, a premium grooving and parting insert designed for stability, accuracy, and longer tool life. Engineered with DP5320 grade coating and a precision-ground carbide substrate, this insert ensures superior wear resistance and edge stability — even under tough, interrupted cutting conditions.
With a 3.0 mm cutting width and maximum cutting depth of 13 mm, the DDG30040 is ideal for narrow groove machining, parting-off operations, and specialized slotting where accuracy and finish are critical. Its neutral geometry allows flexible mounting and excellent chip evacuation, minimizing vibration and preventing unexpected tool breakage.
Hook / Attention
Want to slash your cost per component while pushing spindle RPMs? The Duracarb DDG30040 DP5320 delivers extended run-time, sharper edges, and superior stability — so your operators spend less time changing inserts and more time cutting metal.
Key Features & Specs
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Geometry / Type: DDG 30040 grooving / parting & turning indexed insert (groove width 3 mm)
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Cutting Width (CW): 3 mm
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Max Cutting Depth (CDX): up to 13 mm
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Grade / Coating: DP5320 (as per Duracarb catalog for grooving/turning family)
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Body Material: Cemented carbide substrate with engineered coating in DP5320 for wear resistance in interrupted cuts
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Cutting Direction / Handedness: Neutral (usable in both directions)
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Edge Length (L): ~14 mm
Cutting Applications
Although primarily a grooving / parting insert, DDG30040 DP5320 can be used in specialized turning / face-grooving, narrow slotting, cut-off operations, and even light profiling in constrained zones (depending on holder design). It excels where reliable edge strength under interrupted cuts is demanded.
Why It’s a Bestseller
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Reduced downtime — fewer insert changes thanks to longer life per edge
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Stable machining in grooving & parting — better resistance to chipping and edge fracture
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Consistent surface finish & dimensional accuracy on groove walls
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High wear resistance — the DP5320 grade handles tough materials and maintains edge integrity
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Cost-effective per component — the extended life and reliability bring down your overall cost per par
Target Industries / Use Cases
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Automotive: groove features, piston rings, engine components
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Aerospace: narrow groove machining in landing gear, structural parts
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Die & Mold: tight pocketing, cooling channel grooving, slit features
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General Engineering & Heavy Fabrication: shaft grooving, cut-off, narrow slot work
Caveats / Tips (for machinists)
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Choose a rigid holder and optimal chip evacuation to maximize performance.
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Use smooth entry/exit strategies to reduce shock loads.
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Monitor wear progression to avoid sudden failure in deep groove operations.
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Frequently Asked Questions
It’s engineered for steels, alloy steels, cast irons, and mixed interrupted conditions. The DP5320 grade offers good wear resistance for cyclic stresses.
Yes — the insert supports a maximum cutting depth (CDX) of 13 mm (as per Duracarb spec) But proper holder rigidity is essential to fully exploit this.
Use DDG30040 where narrow groove, part-off, slotting, or cut-off operations are needed. For general turning or milling, select inserts from turning / milling families.
DP5320 is one of Duracarb’s established grades for grooving/turning families, offering a balance of toughness and wear resistance. It is listed in the Duracarb catalog for grooving inserts.
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Tool holder rigidity, coolant / chip evacuation, stable feeds, and avoiding sudden shocks at cut entry or exit are key. With good setup, this insert delivers excellent consistency and longevity.
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