BEYOND MTBNR/L CNC Turning Toolholder for TNMG1604 Inserts

The BEYOND MTBNR/MTBNL toolholder series is designed for high-strength CNC external turning using TNMG1604 carbide inserts. Featuring a reliable M-type clamp with lock pin and a precise 75° approach angle (ISO code letter “B”), this toolholder ensures rigid clamping, excellent chip control, and stable performance in heavy-duty and continuous machining.

✔ ISO Code Interpretation (MTBNR / MTBNL)

• M – M-type clamp + Lock Pin system
• T – Insert Shape: Triangular (TNMG)
• B – Cutting Edge Angle = 75°
• N – 0° Insert Relief Angle
• R / L – Right-hand / Left-hand toolholder
• 4-digit number – Shank Height × Width (mm)
• Length Code Letter – Determines total toolholder length
• Final “16” – Insert cutting edge length

✔ Features

• Strong M-type wedge clamp with additional lock pin
• Optimized for 75° approach angle roughing and semi-finishing
• Stable insert positioning for high-feed machining
• Compatible with all TNMG1604 carbide inserts
• Heat-treated steel shank for maximum rigidity
• Suited for steel, stainless steel, alloy steel, and cast iron

✔ Compatible Inserts

TNMG1604 (all grades and chipbreaker designs)

✔ Applications

• External turning
• Roughing and semi-finishing
• Heavy-duty cutting with strong clamping stability
• Machining steel, stainless steel, alloy steel, hardened materials

✔ Technical Specifications

Why Choose BEYOND Toolholders?

BEYOND provides professional-grade CNC turning toolholders engineered for rigidity, durability, and consistent machining accuracy. The MTBNR/MTBNL series is ideal for workshops that require high-strength clamping, reliable tool life, and stable cutting performance in demanding operations.