ZCC.CT KNUX160405L11 YBM251 Left-Hand Turning Inserts for Stainless Steel - CNCHome-Beyond

ZCC.CT KNUX160405L11 YBM251 Left-Hand Turning Inserts for Stainless Steel

$113.36 USD

Free shipping on all orders.
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

Add to WishlistCompare
WhatsApp Inquiry

american expressmasterpaypalvisaapple paygoogle payshopify pay
Description

ZCC.CT KNUX160405L11 YBM251 Turning Insert

Premium Left-Hand Solution for Stainless Steel Machining

Product Overview

"Which insert provides the highest stability and chip-breaking efficiency for left-hand profiling of 304 or 316 stainless steel in medium cutting conditions?"

The ZCC.CT KNUX160405L11 in YBM251 grade is a specialized 55° parallelogram turning insert designed for the ISO M20-M30 range. This Left-Hand (L) geometry is critical for specific tool holder orientations and profiling paths. Featuring a refined CVD coating, it combines a high-toughness substrate with superior wear resistance, specifically tackling the work-hardening and thermal challenges inherent in stainless steel machining. The L11 chipbreaker ensures smooth chip evacuation even at varying depths of cut.

Key Core Advantages

  • ✔ Advanced YBM251 Grade: A second-generation CVD coated carbide optimized for thermal stability in austenitic stainless steel.
  • ✔ Left-Hand (L) Geometry: Dedicated left-hand orientation for specialized profiling and sub-spindle operations.
  • ✔ Superior Chip Evacuation: The L11 groove prevents "bird-nesting," significantly reducing downtime on automated CNC lines.

Technical Specifications

ISO Nomenclature Breakdown

K
55° Shape
N
0° Relief
U
Tolerance
X
Special
16
16mm Edge
04
4.76mm T
L11
LH Chip
Feature Metric (ISO) Imperial (ANSI)
ISO Model KNUX160405L11 KNUX 431-L11
Inscribed Circle 9.525 mm 3/8 in
Nose Radius 0.5 mm 0.020 in

Recommended Cutting Data (M Group)

Application Speed (Vc) Feed (fn)
Stainless (Continuous) 150 - 260 m/min 0.12 - 0.35 mm/r
Stainless (Light Interruption) 120 - 200 m/min 0.15 - 0.30 mm/r

Compatible Left-Hand Holders:

CKJNL / CKUNL / CKDNL (ISO Standard)

View Matching Tool Holders →

Primary Applications

  • Medium profiling of Austenitic Stainless Steel (304, 316).
  • Duplex Stainless Steel machining (Light semi-finishing).
  • Chemical industry flanges and pump shafts.
  • Automotive valve production.

Machine Compatibility

  • All CNC Turning Centers with ISO-compliant turrets.
  • Best utilized with high-pressure coolant systems.
  • Optimized for Left-Hand tool post setups.

ZCC.CT Grade Choice (Stainless Steel)

Grade Range Characteristics
YBM251 M20-M30 Universal Grade / Versatile
YBM151 M10-M20 Finishing / High Speed

Machinist Reviews

★★★★★

"Hard to find quality left-hand inserts. These ZCC units are robust for 316L. No vibration."

— Mike T., USA 🇺🇸
★★★★★

"Sehr gute Standzeit bei Edelstahl. YBM251 ist mein Favorit für den Allround-Einsatz."

— Jürgen K., Germany 🇩🇪
★★★★★

"Perfetto per lavorazione acciai inossidabili. Truciolo sempre sotto controllo."

— Alessandro V., Italy 🇮🇹
★★★★☆

"Excellent finish on SS304. Delivered quickly to Tokyo."

— Tanaka H., Japan 🇯🇵

FAQ

Q: Can I use this Left-Hand insert in a Right-Hand holder?

A: No. Left-Hand (L) inserts must be paired with Left-Hand (L) holders to ensure the proper rake angle and chipbreaker orientation.

Q: What is the best coolant strategy for YBM251?

A: Use high-pressure, flood coolant focused directly on the cutting edge to prevent built-up edge (BUE) common in stainless steels.

Q: Is this insert suitable for roughing?

A: While it can handle light roughing, it is best suited for semi-finishing and profiling in the M20 range.

Material Tip: When machining austenitic stainless, maintain a constant feed rate. If the tool dwells, it will work-harden the material, leading to premature failure of the next insert edge.

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.