TaeguTec VBMT160408PC TT9225 CVD Coated Carbide Turning Insert | 10 Pcs/Box
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TaeguTec VBMT160408PC TT9225 Inserts
Steel & Stainless Steel General Turning | TT9225 CVD Coated Grade | Box of 10 Pcs
"Which 35-degree positive diamond CVD-coated carbide insert with a 0.8mm corner radius and PC chipbreaker is best for general machining and finishing in steel, alloy steel, and stainless steel?"
The TaeguTec VBMT160408PC TT9225 is a high-performance, single-sided, positive-rake 35° rhombic turning insert engineered specifically for versatile general turning, profiling, and internal boring across carbon steels, alloy steels, and stainless steels. Featuring TaeguTec's TT9225 CVD coated grade, this insert combines a carbide substrate with a CVD coating. TaeguTec lists TT9225 among its coated turning grades for stainless steels. Select the grade and cutting conditions for the actual workpiece alloy and machining conditions; coating method alone does not determine suitability for interrupted cutting. Paired with the versatile PC chipbreaker designed for general-purpose machining at moderate feeds and depths of cut, it delivers stable chip control and excellent surface integrity. Whether you are pairing it with internal boring bars like the Beyond S25S-SVJBR16 Internal Boring Bar, Beyond S16Q-SVXBR11 Boring Bar Holder, or Beyond C16Q-SVJBR11 Tungsten Steel Boring Bar, or browsing our extensive collections of TaeguTec VBMT inserts, TaeguTec VCMT inserts, TaeguTec VNMG inserts, Korloy VBMT inserts, ZCC-CT VBMT inserts, and Tungaloy positive turning inserts, the VBMT160408PC TT9225 guarantees dependable shop floor productivity. Review additional design insights in our resources on carbide insert nose radius, stainless steel machining speeds and feeds, and chipbreaker family guides.
Core Engineering Advantages
TT9225 CVD Coated Grade
CVD-coated carbide grade listed by TaeguTec for stainless steel turning. Match cutting conditions to the actual alloy and machining setup.
PC General-Purpose Chipbreaker
Optimized 3D geometry delivers reliable chip breaking and low cutting forces across a broad envelope of feeds and depths of cut.
35° Positive Rhombic Access
Acute 35-degree nose angle and 7° positive clearance offer maximum accessibility for complex profiling, boring, and undercut operations.
ISO Code Specification Breakdown
Technical Specifications & Dimensional Comparison
| Parameter | Metric (Standard) | Imperial Equivalent |
|---|---|---|
| ISO / ANSI Designation | VBMT 160408-PC | VBMT 332-PC (Approx.) |
| Inscribed Circle (IC) | 9.525 mm | 0.375" (3/8") |
| Thickness (S) | 4.76 mm | 0.1875" (3/16") |
| Corner Radius (RE) | 0.80 mm | 0.0315" (approx. 1/32") |
| Grade & Substrate | TT9225 (CVD Coated Carbide) | CVD Coated Carbide |
Recommended Cutting Parameters
*Values are starting recommendations for general turning and profiling in steels and stainless steels with TT9225 CVD grade.
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (fn) | Depth of Cut (Ap) |
|---|---|---|---|
| Carbon & Alloy Steels (P - 1045 / 4140) | 180 - 320 m/min | 0.15 - 0.40 mm/rev | 0.50 - 3.50 mm |
| Austenitic Stainless Steels (M - 304 / 316) | 120 - 220 m/min | 0.12 - 0.35 mm/rev | 0.40 - 3.00 mm |
| Pre-Hardened Steels & Alloy Cast Steels | 140 - 250 m/min | 0.15 - 0.35 mm/rev | 0.50 - 3.00 mm |
Compatible Tool Holders & Boring Bar Resources
Pair these precision 16-size (3/8" IC) positive inserts with compatible turning and boring toolholders such as the Beyond S25S-SVJBR16 Internal Boring Bar, Beyond S16Q-SVXBR11 Boring Bar Holder, and Beyond C16Q-SVJBR11 Tungsten Steel Boring Bar.
For internal profiling solutions, explore our rough and fine boring series or browse screw-on system boring bars.
Industrial Applications
- General Steel & Alloy Turning: Reliable roughing and finishing passes on carbon steel shafts, forged automotive parts, and machinery components.
- Stainless Steel Internal Boring: Stable chip evacuation and thermal crack resistance when machining 304/316 stainless steel tubes and valve bodies.
- Multi-Brand Tooling Consolidation: Fully compatible with alternate positive turning systems across TaeguTec VBMT, Korloy VBMT, ZCC-CT VBMT, and Tungaloy positive turning inserts catalogs.
System Compatibility & Related Insert Catalogs
The VBMT 160408-PC fits all standard ISO-compliant positive 35° rhombic toolholders and boring bars designed for 9.525mm (3/8") IC positive VBMT inserts. To expand your tooling inventory, explore our comprehensive selections including TaeguTec VCMT, TaeguTec VNMG, and TaeguTec negative turning inserts. Review additional application guides such as CNMG grade cross reference guide, chipbreaker family guide, inserts by material, inserts by operation, and top global CNC insert brands.
TaeguTec Grade Selection Matrix
Selecting the optimal TaeguTec turning grade for positive inserts:
- TT9225 (Featured - CVD Coated Grade): CVD-coated carbide grade listed by TaeguTec for stainless steel turning (ISO M). Select the grade and geometry for the actual alloy and machining conditions.
- TT8125 (CVD Coated): Multi-layer CVD coated carbide grade engineered for high-speed continuous turning in carbon steels and cast irons where wear resistance under high heat is paramount.
- K10 (Uncoated Grade): Uncoated micro-grain carbide designed specifically for high-speed mirror finishing in aluminum and non-ferrous materials.
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In-stock cutting tools ship rapidly to keep your CNC spindles turning.
Technical Engineering Support
On-staff tooling specialists available for speed and feed recommendations.
Frequently Asked Questions
Q: Is TT9225 a PVD or CVD coated grade?
A: TT9225 is a CVD-coated carbide grade, not a Nano-PVD grade. TaeguTec lists it among its coated turning grades for stainless steel. Select cutting conditions from the manufacturer's recommendations for the actual alloy and operation.
Q: Do VBMT and VCGT designations specify the coating?
A: No. Insert geometry and grade must be checked separately. This VBMT160408PC uses TT9225 CVD-coated carbide; the coating should not be inferred from the VBMT or VCGT designation alone.
Q: How many cutting edges are included in each box?
A: Each single-sided VBMT insert provides 1 precision indexable cutting edge (10 edges total per factory-sealed box).
Need Help With TaeguTec Inserts?
Looking for a TaeguTec equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.
This TaeguTec insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
Technical FAQ & Buying Guide
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
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