Collection: WNMG Inserts
WNMG Inserts for CNC machine shops. Browse our full wnmg inserts range. India-wide shipping. Bulk pricing available — message us on WhatsApp for quotes.
WNMG turning inserts — 80° trigon shape, negative rake, double-sided with 6 cutting edges per piece. Combines the strong 80° cutting corner of CNMG with the 3-corner economy of TNMG.
Frequently asked questions
WNMG vs CNMG vs TNMG — what is the practical difference?
WNMG trigon = 80° point angle (strong, same as CNMG) with 3 corners per face = 6 edges total. CNMG diamond = 80° point with 2 corners per face = 4 edges. TNMG triangle = 60° point with 3 corners = 6 edges. WNMG combines strong corner (like CNMG) with high edge count (like TNMG) — best cost-per-edge for heavy general turning.
Common WNMG sizes in Indian workshops?
WNMG080404 / WNMG080408 (medium general turning, 16-20 mm shank), WNMG080412 (heavy roughing with 1.2 mm nose). The WNMG080408 is the volume-selling size for most shops.
What toolholder matches a WNMG?
WNMG pairs with W__NR/L holders. Most common: MWLNR2020K08 (95° lead, right-hand, 20×20 shank, 08 insert). The 95° lead matches most general shaft turning and facing geometry.
Best grade for WNMG on medium carbon steel?
For 45C / EN8 / SS400 / 4140 steels: Atomix AX3150 (P25), Korloy NC3120 / PC5300 / PC9030, Deskar LF6018, Mitsubishi US7020, TaeguTec TT3500. All CVD-coated P-class grades give 200-300 min edge life at Vc 180-250 m/min.
Why do some shops prefer WNMG over CNMG?
Math: 6 edges per insert at the same price as 4 edges (CNMG) = 50% more useful life. The trade-off is WNMG needs a slightly different holder — but once tooled up, shops that turn large steel parts save a significant amount on insert spend.
