{"id":2392,"date":"2026-01-13T08:27:25","date_gmt":"2026-01-13T08:27:25","guid":{"rendered":"https:\/\/hycuttingtools.com\/?post_type=product&p=2392"},"modified":"2026-09-29T08:10:32","modified_gmt":"2026-09-29T08:10:32","slug":"vnmg-1604-carbide-turning-inserts-for-steel-and-stainless-steel","status":"publish","type":"product","link":"https:\/\/hycuttingtools.com\/fa\/product\/vnmg-1604-carbide-turning-inserts-for-steel-and-stainless-steel\/","title":{"rendered":"VNMG 1604 Carbide Turning Inserts for Steel and Stainless Steel"},"content":{"rendered":"
\n

<\/p>\n

\n

VNMG 1604 Series Overview<\/h2>\n
<\/div>\n

VNMG 1604 carbide turning inserts use a narrow 35\u00b0 diamond geometry <\/strong>for external turning, facing, fine profiling and machining detailed component features. The pointed shape provides better access around shoulders, contours and restricted machining areas than wider insert geometries.<\/p>\n

The series includes VNMG160404, VNMG160408 and VNMG160412, with grades and chipbreakers for steel and stainless steel. Customers building a broader CNC insert range can also view our carbide turning and milling inserts<\/a>.<\/p>\n

\n
\u25c6<\/span>Geometry:<\/strong> 35\u00b0 negative diamond for profiling and restricted-access turning.
\n<\/span><\/div>\n
\u25c6<\/span>Materials:<\/strong> Application-specific grades for steel and stainless steel.
\n<\/span><\/div>\n
\u25c6<\/span>Chip control:<\/strong> PMF, WM, SF, MF, FM and MM-style chipbreakers.
\n<\/span><\/div>\n
\u25c6<\/span>Supply:<\/strong> Mixed-model orders and neutral or private-label packaging by confirmation.
\n<\/span><\/div>\n<\/div>\n<\/div>\n

<\/p>\n

\n

Models & Dimensions<\/h2>\n
<\/div>\n

Standard VNMG1604 dimensions are listed below. All dimensions are in millimeters.<\/p>\n

\n\n\n\n\n\n\n\n
Model<\/th>\nLength L<\/th>\nI.C.<\/th>\nThickness S<\/th>\nHole \u00d8d<\/th>\nCorner Radius r<\/th>\n<\/tr>\n<\/thead>\n
VNMG160404<\/td>\n16.6<\/td>\n9.525<\/td>\n4.76<\/td>\n3.81<\/td>\n0.4<\/td>\n<\/tr>\n
VNMG160408<\/td>\n16.6<\/td>\n9.525<\/td>\n4.76<\/td>\n3.81<\/td>\n0.8<\/td>\n<\/tr>\n
VNMG160412<\/td>\n16.6<\/td>\n9.525<\/td>\n4.76<\/td>\n3.81<\/td>\n1.2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Selection note:<\/strong>
\nSmaller corner radii suit precision finishing and detailed profiling. Larger radii provide more edge strength but create higher radial cutting force. Confirm the holder, chipbreaker and machining allowance before ordering.<\/p>\n<\/div>\n

<\/p>\n

\n

Chipbreaker Selection<\/h2>\n
<\/div>\n
\n\n\n\n\n\n\n\n\n\n
Model Group<\/th>\nAvailable Radius<\/th>\nTypical Positioning<\/th>\n<\/tr>\n<\/thead>\n
VNMG160404\/08-PMF<\/td>\n0.4 \/ 0.8 mm<\/td>\nFinishing and light-to-medium turning with controlled chip formation.<\/td>\n<\/tr>\n
VNMG160404\/08-WM<\/td>\n0.4 \/ 0.8 mm<\/td>\nGeneral turning under stable and continuous machining conditions.<\/td>\n<\/tr>\n
VNMG160404\/08\/12<\/td>\n0.4 \/ 0.8 \/ 1.2 mm<\/td>\nGeneral-purpose coverage from finishing to heavier cutting.<\/td>\n<\/tr>\n
VNMG-SF \/ MF<\/td>\n0.4 \/ 0.8 mm<\/td>\nSharp finishing geometries for stainless steel and selected alloys.<\/td>\n<\/tr>\n
VNMG-FM \/ MM<\/td>\n0.4 \/ 0.8 mm<\/td>\nFinishing-to-medium chip control with the appropriate grade.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

For a stronger 55\u00b0 geometry with greater edge support, compare the DNMG 1504\/1506 turning insert range<\/a>.
\nFinal chipbreaker selection should reflect the workpiece, feed, depth of cut and machining stability.<\/p>\n<\/div>\n

<\/p>\n

\n

Grade Selection Guide<\/h2>\n
<\/div>\n
\n
\n
YC331<\/span>
\nSteel \u00b7 P<\/span><\/div>\n
Thick TiCN and Al\u2082O\u2083 coating with a deformation-resistant substrate. Suitable for general steel machining, higher removal rates and demanding cutting conditions.<\/div>\n
Reference grades:<\/strong> GC4025 \/ UE6020 \/ CA5025 \/ YBC252<\/div>\n<\/div>\n
\n
YP731<\/span>
\nStainless Steel \u00b7 M<\/span><\/div>\n
High-toughness ultrafine-grain substrate with TiAlSiN coating for general stainless-steel turning and selected heat-resistant alloy applications.<\/div>\n
Reference grades:<\/strong> GC2035 \/ VP15TF \/ YBG205<\/div>\n<\/div>\n
\n
YP753<\/span>
\nPVD \u00b7 M \/ P<\/span><\/div>\n
PVD NC-TiAlN multi-nano coating with strong adhesion, wear resistance and thermal insulation for medium- and higher-speed turning of stainless steel and softer steel.<\/div>\n
Typical use:<\/strong> Finishing and general turning at suitable medium-to-high cutting speeds.<\/div>\n<\/div>\n<\/div>\n

Grade-matching note:<\/strong><\/span>
\nReference grades indicate approximate market positioning and are not guaranteed one-to-one equivalents. Trial cutting is recommended before volume replacement.<\/p>\n<\/div>\n

<\/p>\n

\n

VNMG160404-PM Product Video<\/h2>\n
<\/div>\n

View the insert appearance, cutting-edge geometry and PM chipbreaker details before requesting samples or a quotation.<\/p>\n

<\/p>\n

\"VNMG