MCLNR2020K12 CNC Lathe Tool Holder 3/4\" + CNMG120404-TF Carbid Insert For Steel For Sale

MCLNR3/4 K12 CNC Lathe Tool Holder + CNMG120404-TF Insert Set – Industrial-Grade Caroffere for Precision Steel & Stainless Steel MachiningProduct OverviewPremiumMCLNR3/4K12 turning tool holderpaired with aCNMG120404-TF caroffere insert, designed for high-precision turning operations on CNC or manual lathes. Crafted fromhigh-quality caroffere and carbon steel, this set delivers exceptional rigidity, wear resistance, and stability, making it ideal for machining tough materials like carbon steel, alloy steel, and stainless steel (304/316/430).Key Features✅Premium Materials & Construction:

• Tool Holder: Made from heat-treated carbon steel (HRC 40-45) with black oxide finish for anti-rust protection and long service life.
• Insert: CNMG120404-TF caroffere insert withTiN coating(golden layer), offering 2300 HV hardness for reduced friction, improved heat resistance, and extended tool life.

✅Precision Geometry:

• MCLNR2020K12 Holder:
  • 3/4\" (19.05mm) shank diameter, 125mm overall length for deep-reach turning.
  • Right-hand design with 11° relief angle and 7° rake angle for smooth chip evacuation and minimal cutting force.
• CNMG120404-TF Insert:
  • 12.7mm inscribed circle, 4.76mm thickness, 0.4mm nose radius – perfect for finishing and medium-duty roughing.

✅Easy Installation & Compatibility:

• Fits standardMCLNR-style tool posts(common in CNC lathes like HAAS, Fanuc, and manual lathes).
• Quick-lock clamping mechanism secures the insert firmly, enabling fast blade changes without tools.

✅USA Stock & Fast Shipping:

• Dispatched within 1 business day via USPS/FedEx (2-5 days delivery within the US).
• Free domestic shipping– no customs fees, tracking provided immediately after dispatch.

Technical SpecificationsComponentDetailsTool Holder ModelMCLNR2020K12 (3/4\" shank, right-hand)Holder MaterialHeat-treated carbon steel (HRC 40-45)Holder DimensionsShank: 3/4\" (19.05mm) × Length:125mmInsert ModelCNMG120404-TF (TiN-coated caroffere)Insert SizeInscribed Circle: 12.7mm
Thickness: 4.76mm
Nose Radius: 0.4mmRecommended Speed100-300 m/min (carbon steel)
80-200 m/min (stainless steel)Feed Rate0.1-0.3 mm/revMax Depth of Cut3mm (finishing), 5mm (roughing)What’s Included

• 1x MCLNR2020K12 CNC Lathe Tool Holder (3/4\" shank, right-hand)
• 1x CNMG120404-TF TiN-Coated Caroffere Insert
• 1x Mounting screw for insert clamping
• Protective packaging to prevent transit damage

Ideal for Machining

• Materials:
  • Carbon steel (AISI 1018/1045), alloy steel (4140/4340), stainless steel (304/316/430), tool steel (≤300 HB).
• Operations:
  • External turning, facing, profiling, and light grooving on cylindrical workpieces.
• Industries:
  • Automotive parts manufacturing, aerospace component machining, precision instrument workshops, and DIY metalworking.

Why Choose Our Set?

1. All-in-One Solution: Combines a durable holder and high-performance insert – ready to use out of the box.
2. Superior Surface Finish: TiN-coated insert ensures smooth cutting with surface roughness ≤ Ra 1.6μm.
3. Rigidity & Stability: Thick shank design minimizes vibration, even at high speeds or deep cuts.
4. Local Support: US-based customer service for quick assistance with tool setup or compatibility questions.

Usage Tips

• Insert Installation: Align the insert’s cutting edge with the holder’s reference surface and tighten the screw to 8-10 N·m torque.
• Coolant Use: For stainless steel machining, use high-pressure coolant to prevent chip welding; dry cutting is suitable for carbon steel.
• Tool Post Compatibility: Ensure your lathe’s tool post accepts 3/4\" cylindrical shanks (common in ISO-standard lathes).
• Storage: Store in a dry, cool place – the holder’s black oxide coating resists rust, but avoid prolonged exposure to moisture.

On Apr 11, 2025 at 01:35:16 PDT, seller added the following information: