Tungaloy VB / VC 35° Diamond Turning Inserts — VBMT, VCMT Steel Profiling & Copy Turning

24 in-stock 35° diamond Tungaloy indexable carbide turning inserts covering 2 geometry families (VBMT / VCMT) and 4 grade families (T9115 / T9125 / NS9530 / AH725). IC sizes 11.0-16.0 mm. The 35° diamond for sharpest profiling and copy turning. 2-3 day dispatch from Zhejiang warehouse, DHL/UPS worldwide 3-7 days, all ISO 1832 compliant.

About VB / VC 35° Diamond Inserts (V-Style)

The ISO 1832 V-shape family delivers a 35° rhombic cutting edge — the sharpest profiling geometry in the standard ISO turning lineup. Tungaloy's V-family in this collection includes:

• VB (5° positive clearance) — 14 SKUs. The sharpest 35° diamond with low cutting force. Used for profiling, copy turning, and small-diameter finishing on Swiss-type lathes.
• VC (7° negative clearance) — 10 SKUs. The balanced 35° negative with more edge strength. Used for stainless profiling with light interruptions.
• VN (0° zero-rake) — Currently not stocked (sourced on-demand). The strongest 35° diamond edge for cast iron heavy roughing.

VB and VC inserts are the sharpest profiling turning inserts — the 35° included angle creates a very low cutting force with a sharp edge, ideal for profiling along 3D surfaces, finishing slender shafts, and copy turning. The 35° geometry is less common than 55° (DC) or 80° (CC) but provides unique advantages for specific applications: best surface finish, lowest cutting force, and the smallest nose radius per IC size.

Tungaloy's VB/VC catalog in this collection features the popular PS chip-breaker (precision semi-finishing) and 24 chip-breaker (medium cutting) across 2 IC sizes (11 / 16) and 4 grade families: T9115 (CVD steel), T9125 (CVD stainless), NS9530 (cermet finishing), and AH725 (PVD universal).

Browse by Application & Grade

All 24 VB / VC SKUs are grouped below by application and grade. Click any category to filter the full catalog.

By Workpiece Material

• Carbon Steel / Alloy Steel — VBMT / VCMT-PS T9115 (CVD P-grade, 6+ SKUs)
• Stainless Steel — VBMT / VCMT-PS T9125 (CVD M-grade, 6+ SKUs)
• Mirror Finish on Steel — VBMT / VCMT-PS / -24 NS9530 cermet (10+ SKUs)
• Universal (steel + stainless) — VBMT-PS AH725 (PVD, 4+ SKUs)

By IC Size

• 11.0 mm (VBMT / VCMT 11): Small IC, profiling / Swiss-type. 8 SKUs across grades.
• 16.0 mm (VBMT / VCMT 16): Larger IC, general profiling. 16 SKUs across grades.

By Carbide Grade

• T9115 (CVD Steel P-grade) — Tungaloy's CVD grade for steel finishing (P10-P20).
• T9125 (CVD Stainless M-grade) — Tungaloy's CVD grade for stainless with interrupted cuts (M15-M30).
• NS9530 (Cermet) — Tungaloy's premium cermet grade for mirror surface finishing (P05-P15).
• AH725 (PVD Steel) — Tungaloy's premium PVD Al-rich grade for steel and stainless (P10-P25).

By Chip-Breaker (2 Variants)

• PS (Precision Semi-finishing): 18+ SKUs. Tungaloy's premium precision finishing chip-breaker.
• 24 (Medium Cutting): 6+ SKUs. Tungaloy's general-purpose medium-duty chip-breaker for profiling.

How to Choose the Right VB / VC 35° Diamond Insert — 3-Step

Step 1 — Identify the Workpiece

• Carbon steel / alloy steel: VBMT or VCMT with T9115 (CVD P-grade).
• Stainless steel 304/316: VBMT or VCMT with T9125 (CVD M-grade).
• Mirror finish on steel: VBMT or VCMT with NS9530 cermet (P05-P15).
• Universal (steel + stainless): VBMT with AH725 (PVD Al-rich).
• Sharpest possible profiling (low feed): VBMT (5° positive) with PS chip-breaker.

Step 2 — Pick the Chip-Breaker

• PS (Precision Semi-finishing): Lighter chip-breaker for finishing and profiling at low feed rates.
• 24 (Medium Cutting): General-purpose medium-duty chip-breaker for profiling and interrupted cuts.

Step 3 — Verify Holder Compatibility

• VB (35° positive): Use SVJB or PVJB positive turning holder with 35° lead angle.
• VC (35° negative): Use MVJN negative turning holder with 35° lead angle.
• Verify lead angle: 35° matches VB/VC perfectly. Common holders: SVJBR/L 2020-K11 (11 mm IC).
• Match IC to holder pocket: VBMT 11 needs 11 mm pocket; VBMT 16 needs 16 mm pocket.

Frequently Asked Questions

Related Tungaloy & Other Brand Inserts

Need a Specific Tungaloy VB / VC 35° Diamond Insert Not in Stock?

24 in-stock SKUs covering VBMT / VCMT in 4 grades. For specialty VNMT (0° zero-rake), VGMT, or specific Tungaloy equivalent cross-references (Sandvik / Mitsubishi / Kennametal / Iscar / Walter), request a quote — 24-hour response, 2-3 day dispatch from Zhejiang, DHL/UPS worldwide 3-7 days.