50mm A40T PDUNR Boring Bar PDUN For DNMG Indexable Inserts, Right Hand, Internal Coolant - Teknik Makina

Take advantage of a rigid, right-hand turning solution with internal coolant and proven compatibility with DNMG 1506 indexable inserts; the combination of stable engagement and straightforward insert interchange supports consistent cycle times and reduced tool changes—order via Metav Werkzeuge or ask the consultants for application advice.

Boring bar AP304TM — A40T PDUNR right-hand boring bar with internal coolant by Teknik Makina

The Boring bar AP304TM is a right-hand turning tool designed for use with DNMG 1506 indexable inserts, engineered to deliver stable cutting conditions in general turning and facing operations.

• Right-hand boring bar with internal coolant
• Compatible with DNMG 1506 indexable inserts
• 40 mm shank, 300 mm overall length
• 93° cutting angle for stable engagement

Consistent turning performance through compatible geometry

The A40T PDUNR designation describes a tool body that is matched to standard DNMG 1506 indexable inserts, so insert seating and clamping are standardised and changeovers are predictable. By using a tool body with a defined 93° cutting angle, the engagement geometry is controlled, which reduces radial deflection and delivers repeatable dimensioning. Indexable inserts are replaceable carbide tips that allow cutting-edge renewal without regrinding; this reduces overall process costs when high volumes of parts are produced. The combination of standard insert type and robust tool geometry means cycle times can be maintained with fewer interruptions for tool maintenance.

Improved cooling and chip control for longer edge life

This tool is equipped for internal coolant, enabling coolant to be delivered directly to the cutting zone. Direct coolant application reduces flank and crater wear on the insert and removes heat more efficiently than external jets alone. For operations that generate elevated temperatures, through-tool cooling improves surface finish and helps maintain tool life, which supports longer uninterrupted runs on production machinery. In practice, internal coolant also assists in chip evacuation when paired with the correct insert geometry, lowering the risk of built-up edge and enhancing process stability during medium- to heavy-duty cuts.

Rigidity and dimensions that support stable machining

Key physical parameters—40 mm shank and 300 mm overall length—are selected to balance reach and stiffness. A thicker shank reduces vibration and offers improved resistance to bending moments compared with smaller diameters, so dimensional accuracy is more easily retained on facing and turning passes. The tool has a 55 mm cutting height which provides a solid platform for the insert pocket, while the tool weight of 1.79 kg contributes to its inertial stability in the chuck or tool post. These design choices are geared towards minimising chatter and ensuring that the cutting edge engages predictably under typical lathe feed and speed conditions.

Practical workshop integration and application notes

The AP304TM suits routine turning tasks where DNMG-type carbide inserts are already in use, enabling toolholders to be standardised across a machine park. Right-hand cut direction is indicated for conventional turning operations on lathes set up for right-hand tool feed. Technical advice and compatibility checks are available on request; technical data such as shank diameter, cutting height and coolant provision should be verified against the machine tool’s turret or holder specification before mounting. For workshop planners seeking dependable interchangeability and straightforward maintenance, the combination of standard insert format and through-tool cooling simplifies inventory and reduces downtime.

Contact Metav Werkzeuge today to discuss how the AP304TM with internal coolant and DNMG 1506 compatibility can improve turning consistency; call +49 2822 7131930 or email info@metav-werkzeuge.com

Technical data

• Article number: AP304TM
• Manufacturer: Teknik Makina
• ISO designation: A40T PDUNR
• Suitable for inserts: DNMG 1506

Facts

• Shank diameter: 40 mm
• Cutting height: 55 mm
• Overall length: 300 mm
• Tool diameter: 50 mm
• Cutting angle: 93°
• Weight: 1.79 kg

Special features

• Right-hand cutting direction
• Internal coolant (through-tool cooling)
• PDUN geometry for DNMG indexable inserts
• Solid tool body for stable clamping

FAQ

What insert type does this boring bar accept?
The AP304TM is designed for DNMG 1506 indexable inserts and uses the PDUN seating geometry for secure clamping.

Is the coolant supplied internally or externally?
Internal coolant is provided; the bar is configured for through-tool cooling to deliver coolant directly to the cutting edge.

What is the shank diameter and overall length?
Shank diameter is 40 mm and overall length is 300 mm, dimensions chosen to balance reach with rigidity.

Can the tool be used for finishing as well as roughing?
Yes, with the correct DNMG insert grade and cutting parameters the AP304TM can be applied to both finishing and roughing tasks, benefiting from stable engagement and coolant support.

Which cutting direction is specified for this tool?
The tool is configured for right-hand cutting direction, suitable for standard lathe setups.

Manufacturer: Teknik Cutting Tools, Buyukkayacık OSB Mah.422 Nolu Sokak.No:9, Selcuklu/KONYA/TURKEY / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; eMail: info@metav-werkzeuge.com