MDJNR2525M15 Turning Tool Holder (for DNMG 1504 inserts)

The MDJNR2525M15 Turning Tool Holder is a heavy-duty external lathe holder designed for DNMG 1504 negative inserts. With a rigid 25×25 mm shank, the MDJNR2525M15 Turning Tool Holder provides excellent stability, secure clamping, and low vibration during machining. Built with a lever-lock clamping system, the MDJNR2525M15 Turning Tool Holder ensures reliable insert positioning and consistent accuracy in medium-to-rough turning operations on steels, stainless steels, and cast irons.

Engineered with a 93° approach angle, this toolholder is ideal for external turning and facing operations that require both toughness and precision. The negative rake geometry allows each DNMG insert to use multiple cutting edges, improving cost efficiency and tool life. Its robust design makes it suitable for continuous and interrupted cuts, especially in production environments where long service life and consistent performance are essential.

The MDJNR series is widely used in automotive, aerospace, and general engineering industries. Thanks to its secure clamping system and compatibility with DNMG 1504 inserts, it is a dependable choice for demanding machining tasks.

Code Breakdown

• M – Lever-lock clamping system

• D – Insert shape: 55° diamond (DNMG)

• J – Toolholder style with 93° approach angle

• N – Insert clearance: 0° negative relief

• R – Right-hand cutting direction

• 2525 – Shank dimensions: 25×25 mm

• M15 – Seat size for DNMG 1504 inserts

Key Features of the Tool Holder

• Rigid 25×25 mm shank for maximum stability

• Designed for DNMG 1504 negative inserts

• Lever-lock clamping for secure and safe machining

• 93° approach angle for external turning and facing

• Reliable for steels, stainless steels, and cast irons

Equivalent Tool Holders (Other Brands)

• Sandvik: MDJNR 2525M15-4325 (Sandvik official site)

• Seco: MDJNR 2525M15

• Kennametal: MDJNR 2525M15 KCTL

• Iscar: MDJNR 2525M15-D

Application Guidelines

• Compatible inserts: DNMG 150404, DNMG 150408, DNMG 150412

• Approach angle: 93° for external turning

• Best suited for medium to heavy-duty cutting

• Typical industries: automotive, aerospace, heavy engineering

For DNMG inserts and additional toolholders, visit our Diamond Cut store.