The MDJNR 2020K11 is a durable external turning tool holder designed for roughing, semi-finishing, and profiling on CNC lathes and conventional turning machines. It is specifically made to hold DNMG carbide inserts with a 55° diamond geometry, offering an excellent balance between edge strength and accessibility for versatile machining tasks.
With its 20×20 mm shank and right-hand cutting orientation, this holder ensures rigidity, reduced vibration, and long tool life. The MDJNR pocket design secures the insert firmly with a reliable clamping system, allowing consistent performance in both continuous and interrupted cuts. The 93° approach angle enables efficient material removal, precise profiles, and smooth surface finishes.
The MDJNR 2020K11 is widely used in automotive, aerospace, and general machining industries where repeatability and accuracy are essential. Paired with DNMG 1104 inserts, it is particularly effective for steel, stainless steel, and alloy turning under medium to heavy-duty cutting conditions.
Code Breakdown:
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M – Tool holder type: screw clamp
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D – Insert shape: 55° diamond (DNMG)
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J – Holder style with 93° approach angle
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N – Clearance angle: 0° (neutral)
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R – Cutting direction: right-hand
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2020 – Shank size: 20×20 mm
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K11 – For DNMG 1104 inserts
Key Features:
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External turning and profiling tool holder
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Shank size: 20×20 mm for rigidity
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Right-hand cutting direction
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Compatible with DNMG 1104 inserts
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Screw clamping for secure insert holding
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Suitable for medium and heavy-duty cutting
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Excellent for steels, stainless steels, and alloys
Compatible Inserts:
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DNMG 110404 / 110408 series
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