Mitsubishi CPMH090304-SV US735 Stainless Finishing Insert (10pcs)
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CPMH090304-SV US735
High-Toughness Finisher | US735 Impact Barrier | SV Precision Geometry
Engineered for Precision in Harsh Conditions
US735 Grade (Stainless Impact Specialist): The US735 is a CVD-coated grade that defies the standard "brittle" nature of finishing tools. Specifically optimized for M-Class (Stainless Steel), it features a unique substrate that absorbs mechanical shock. This makes it ideal for finishing passes on parts with cross-holes, keyways, or uneven surfaces that would otherwise shatter a standard finishing grade.
SV Chipbreaker (Low-Force Precision): The SV geometry is a light-cutting, small-cut chipbreaker. It features a highly positive rake angle that "slices" rather than "pushes" the material. This sharp action is critical for preventing work-hardening of the stainless surface and reducing radial forces that cause chatter in slender boring bars.
0.4mm (1/64") Radius: The 04 radius is the precision standard. It allows for the finest surface finishes (Ra) and generates the least amount of heat at the tip, ensuring dimensional stability throughout the cut.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CPMH090304-SV | 9.525 mm | 3.18 mm | 0.40 mm |
| Imperial | CPMH321-SV | 3/8" | 1/8" | 0.0157" (1/64") |
Precision Cutting Parameters
*SV geometry performs best at low feeds. For interrupted cuts, maintain speed but decrease feed slightly for edge safety.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Stainless 304/316 | 90 - 170 m/min | 0.04 - 0.12 mm/r | 0.10 - 1.20 mm |
| High Strength Alloy | 70 - 140 m/min | 0.03 - 0.10 mm/r | 0.08 - 1.00 mm |
Compatible Tooling Systems
Optimized for use with SCLC or SCPC series precision boring bars:
Shop 09-Series HoldersPro-Tip: US735 vs. US7020
US735 (Toughness First): Your primary choice for interrupted cuts or when the machine setup is not perfectly rigid.
US7020 (Wear Resistance First): Switch to US7020 for continuous, stable turning at higher speeds to extend tool life when shock is not a factor.
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