Mitsubishi WNMG080412-MA US735 Carbide Turning Inserts for Stainless Steel (10pcs/box) - BEYOND

Mitsubishi WNMG080412-MA US735 Carbide Turning Inserts for Stainless Steel (10pcs/box)

$92.26 USD

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Check compatibility: Confirm the model and dimensions before ordering.
Need help choosing? Contact us before ordering.

💰 Bulk savings 2-9 pcs · 6% OFF | 10+ pcs · 12% OFF

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Description

MITSUBISHI WNMG080412-MA US735

Heavy-Duty Stainless Specialist | Superior Edge Strength | Made in Japan

Product Overview

The Mitsubishi WNMG0804012-MA US735 is an industrial powerhouse designed specifically for the heavy-duty turning of stainless steel. Engineered in Japan, it features a large 1.2mm nose radius and the industry-proven US735 CVD coating. This combination excels in high-feed applications and unstable cutting conditions, making it the premier choice for CNC machining of 304, 316, and duplex stainless steels. The MA chipbreaker provides the necessary structural integrity to handle interrupted cuts while maintaining excellent chip control.

ISO Designation Identification

W
Trigon 80°
N
Negative 0°
M
Tolerance
G
Hole/Chip
08
IC 12.7mm
04
Thick 4.76mm
12
Radius 1.2mm
MA
Medium Cut

Technical Specifications: Metric vs. Imperial

Feature Metric (ISO) Imperial (ANSI)
Model Number WNMG 080412-MA WNMG 433-MA
Inscribed Circle (IC) 12.7 mm 0.500 inch
Corner Radius 1.2 mm 0.047 inch

Material: US735 (CVD Coated Carbide)

The US735 grade is a specialized toughened carbide with a multi-layer CVD coating specifically designed to combat the high thermal and mechanical stress of stainless steel turning. It effectively resists thermal cracking and notch wear, which are the most common failure modes in CNC turning of stainless materials. This grade is the "problem solver" for interrupted cuts and high-temperature alloys.

MA Geometry (Medium Cutting)

The MA chipbreaker is designed for medium-duty applications. It features a sharp cutting edge that reduces cutting force while the land behind the edge is reinforced to prevent chipping. This makes the Mitsubishi indexable insert highly versatile for varying depths of cut and feed rates.

Recommended Cutting Parameters

Optimized for Stainless Steel (M-Class):

  • Cutting Speed (Vc): 70 - 160 m/min (230 - 525 SFM)
  • Feed Rate (f): 0.18 - 0.45 mm/rev (0.007 - 0.018 ipr)
  • Depth of Cut (ap): 1.0 - 4.5 mm

*Note: With a 1.2mm radius, you can push higher feed rates compared to the 0.8mm version.*

Compatible Tool Holders:

Shop MWLNR / DWLNR Holders

Customer Reviews

⭐⭐⭐⭐⭐ "Heavy-duty winner" - Mark R., USA
"The 1.2mm radius is perfect for roughing out 304 stainless plates. US735 doesn't crack under heat like my old inserts did. Top-tier Japanese quality."

⭐⭐⭐⭐⭐ "Original & Tough" - Dieter K., Germany
"Genuine Mitsubishi. Stable performance for interrupted cuts. The MA chipbreaker manages chips perfectly even in deep cuts."

⭐⭐⭐⭐ "Great Life" - Kenji T., Japan
"Consistent tool life across all 6 edges. Very stable on our big CNC machines."

⭐⭐⭐⭐⭐ "Fast Delivery" - Liam W., Australia
"Fast shipping and the product is exactly as described. These are definitely made in Japan. Handles our heavy turning jobs well."

⭐⭐⭐⭐⭐ "Solid Roughing" - Sanjay G., India
"Very stable when machining cast stainless. The coating quality is superior and doesn't flake off."

Technical Q&A

Q: Why choose a 1.2mm radius over 0.8mm?

A: The 1.2mm radius provides greater edge strength and allows for higher feed rates, making it superior for roughing and heavy cuts.

Q: Is this insert double-sided?

A: Yes, this is a negative trigon insert, offering 6 usable cutting edges total.

Q: Can I use this for finishing?

A: It can be used, but due to the large 1.2mm radius, you will need a higher feed rate to break chips, which might affect surface finish. For fine finishing, consider a 0.4mm radius.

Expert Tip: US735 vs. MC7025

For General Stainless Steel turning where stability is uncertain, use US735. If you are doing high-speed continuous turning in very stable conditions, MC7025 may offer better wear resistance.

Technical FAQ & Buying Guide

How do I choose the correct specification?

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.

How can I check compatibility with my existing setup?

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.

What quantity and price unit am I 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.

How should I choose cutting parameters?

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.

Are bulk discounts available?

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.

When will my order ship and arrive?

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.