Mitsubishi DCGT11T304M-SMG VP15TF Ground Precision Turning Insert (10pcs)
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DCGT11T304M-SMG VP15TF
Semi-Mirror Ground Precision | Miracle PVD | Medium-Fine Finishing
The Bridge Between Precision and Productivity
VP15TF Grade (Miracle PVD Tech): The VP15TF grade is the gold standard for versatility. It utilizes a high-toughness micro-grain carbide substrate coated with (Al,Ti)N Miracle PVD. This coating is specifically engineered to resist built-up edge (BUE) in gummy materials like 304/316 Stainless Steel while providing enough thermal protection for high-speed alloy steel turning.
SMG Chipbreaker (Semi-Mirror Ground): The SMG geometry is a unique "hybrid" breaker. It features a razor-sharp ground edge for surface finish quality but adds a specific micro-land that stabilizes the edge during semi-finishing cuts. This allows you to push the feed rate slightly higher than a standard "F" breaker without sacrificing the "Mirror" surface finish.
0.4mm Radius & Neutral Geometry: The 0.4mm (04) nose radius provides the best balance of strength and Ra (surface roughness) values. Being a neutral-style insert, it can be used for both right and left-hand toolpaths in specific holders.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | DCGT11T304M-SMG | 9.525 mm | 3.97 mm | 0.40 mm |
| Imperial | DCGT32.51M-SMG | 3/8" | 5/32" | 0.0157" |
Recommended Machining Parameters
*The SMG breaker allows for a wider feed range compared to standard fine finishers.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Carbon/Alloy Steel | 140 - 280 m/min | 0.05 - 0.20 mm/r | 0.15 - 2.00 mm |
| Stainless (304/316) | 100 - 190 m/min | 0.04 - 0.15 mm/r | 0.10 - 1.50 mm |
Compatible Tooling Systems
Maximum performance when used with precision SDJCR/L or SDUCR/L holders:
Shop SDJCR 11 HoldersPro-Tip: When to choose SMG over F-Breakers
SMG Breaker: Use when you need a mirror finish but your depth of cut is slightly heavier (up to 2mm). It is more durable than the ultra-sharp F-breaker.
F Breaker: Choose only for the lightest finishing passes ($Ap < 0.5mm$) where cutting force must be minimized at all costs.
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This Mitsubishi 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.
According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.