TaeguTec SNMG120408-MC TT8115 | High-Speed Steel Turning Insert
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✓ Global Shipping: Delivery: generally 5–20 business days, depending on destination and shipping method.
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💰 Bulk savings 2-9 pcs · 6% OFF | 10+ pcs · 12% OFF
TaeguTec SNMG120408-MC TT8115
Engineered for Velocity: The Ultimate High-Speed Steel Finishing Solution
Product Overview
"Which CNC insert is best for high-speed finishing of carbon steel when I need to maximize cycle time without sacrificing tool life or surface Ra?"
The TaeguTec SNMG120408-MC TT8115 is designed specifically for high-efficiency machining of ISO P Steel. The TT8115 grade utilizes a highly wear-resistant CVD coating with a thick Al2O3 layer that acts as a thermal barrier, preventing crater wear during high-velocity friction. Complementing this is the MC (Medium-Finishing) chipbreaker, which features a optimized rake angle for stable chip evacuation. With an 0.8mm nose radius, this insert provides the ideal balance between edge strength and surface smoothness, ensuring your CNC shop stays productive and precise.
Key Features
A high-hardness substrate combined with advanced coating technology for maximum wear resistance at elevated cutting speeds.
Excellent chip control for medium-finishing operations, reducing the risk of "bird-nesting" and workpiece damage.
90° Square geometry providing 8 usable cutting edges, significantly lowering your cost-per-part.
Technical Specifications
ISO Code Decoding: SNMG120408-MC
Square
0° Relief
Tolerance
MC-Chip
12.7mm IC
4.76mm T
0.8mm RE
| Unit System | Designation | I.C. (Inscribed Circle) | Nose Radius |
|---|---|---|---|
| Metric (ISO) | SNMG120408-MC | 12.70 mm | 0.8 mm |
| Imperial (ANSI) | SNMG432-MC | 0.500" | 1/32" (0.031") |
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Carbon Steel (P1-P2) | 280 - 480 m/min | 0.15 - 0.45 mm/rev |
| Alloy Steel (P3-P4) | 220 - 380 m/min | 0.15 - 0.40 mm/rev |
Required Toolholders
This insert is compatible with all standard 12mm I.C. square turning holders. Recommended: DSBNR/L 2525 M12, MSSNR/L 2525 M12, and precision boring bars for internal turning.
Product Applications
- High-speed finishing of carbon steel shafts and axles.
- Precision turning of alloy steel gears and transmission parts.
- Continuous cutting in automated CNC production lines.
- General manufacturing where surface finish and cycle time are critical.
Why Choose TaeguTec?
TaeguTec is a global leader in metalworking solutions, known for pushing the boundaries of material science. The SNMG120408-MC TT8115 is not just an insert; it’s a productivity engine. While competitors' tools often fail due to heat-induced edge deformation, our TT8115 grade maintains its hardness at temperatures exceeding 1000°C. This means you can run your machines faster and longer with total confidence. Invest in TaeguTec for industrial-grade reliability that translates directly to your bottom line.
Verified Global Feedback
"Increases Spindle Speed"
We switched to TT8115 and were able to increase our cutting speed by 25% without losing tool life. Perfect for our high-volume steel orders.
— Precision Machining Group (USA)"Hervorragendes Oberflächenfinish"
The MC chipbreaker works wonders. Chips are short and the surface Ra is exactly what our customer requires. Very stable grade.
— Drehtechnik GmbH (Germany)"Grande stabilità termica"
The best insert we've used for continuous finishing in alloy steel. Heat is not an issue for this TT8115 coating.
— Meccanica di Precisione (Italy)"Consistent and Fast"
Reliable performance corner after corner. We run 8 corners on every insert, making it extremely cost-effective.
— Kanto Precision Tools (Japan)Frequently Asked Questions
1. Is the TT8115 grade suitable for interrupted cuts?
The TT8115 is optimized for high-speed continuous cuts. For heavy interruptions, we recommend the tougher TT8125 grade.
2. Can I use this for Stainless Steel?
This insert is designed for ISO P Steel. While it can machine some stainless, TaeguTec's TT9080 is the dedicated solution for stainless steel turning.
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.
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.