Collection: DNMG Inserts
DNMG Inserts for CNC machine shops. Browse our full dnmg inserts range. India-wide shipping. Bulk pricing available — message us on WhatsApp for quotes.
DNMG turning inserts — 55° diamond negative rake, double-sided, used for profiling, facing corners, and finishing where a sharper point is needed than CNMG.
Frequently asked questions
DNMG vs CNMG — key differences?
Point angle differs: DNMG = 55°, CNMG = 80°. Sharper DNMG reaches into profile corners and gives better surface finish on facing cuts, but takes less feed and is weaker at the nose. CNMG is the general-purpose workhorse; DNMG is the profile-and-finish specialist.
How many cutting edges does a DNMG have?
Four edges. Two 55° corners per face × two faces. Same edge count as CNMG.
Common DNMG sizes stocked in India?
DNMG110404 / DNMG110408 (medium profiling, 16-20 mm shank), DNMG150604 / DNMG150608 (heavier finishing, 20-25 mm shank). 0.4 mm nose finishes; 0.8 mm nose is general purpose.
Which toolholder matches a DNMG insert?
DNMG pairs with D__NR/L holders. Most common lead angles: 93° (MDJNR — good for profiling toward the chuck with 3° back angle) and 107.5° (MDHNR — deeper profile reach). Right-hand for standard CCW-spindle lathes.
Can I finish a shaft to Ra 0.8 with DNMG?
Yes, with the right setup. DNMG150604 at feed 0.08-0.12 mm/rev, Vc 220-280 m/min, 0.15-0.30 mm depth of cut on steel. Wet coolant and rigid clamping required. For Ra 0.4 or better, switch to a ground-edge -WF / -SF chipbreaker or a VBMT for final pass.
