32mm S25S DDQNR Drilling Bar 107.5° For DN-- 1506 Indexable Inserts, 250mm Overall Length - Teknik Makina

Take advantage of the precise 107.5° cutting geometry and stable 25 mm shank for reliable boring performance; combined with compatibility for DN-- 1506 indexable inserts this tool supports consistent component tolerances and efficient insert changes. Order the part directly via Metav Werkzeuge or consult the technical team for application advice.

Boring bar K476TM — S25S DDQNR with 107.5° cutting angle and DN-- 1506 compatibility

Boring bar K476TM is a right-hand cutting tool designed for internal turning and boring with indexable inserts in industrial turning applications

• 107.5° cutting angle for deep machining
• Compatible with DN-- 1506 indexable inserts
• Shank diameter 25 mm for stable clamping
• 250 mm overall length for extended reach

Consistent metal removal with a defined cutting geometry

The 107.5° cutting angle delivers a predictable chip flow and reduced vibration during internal turning, which translates into improved surface finish and repeatable diameters. This geometry is particularly effective where axial clearance is limited: the defined rake and contact geometry of the toolholder reduce chatter and support stable cutting forces. Using a tool with a controlled cutting angle shortens set-up times and lowers scrap rates, creating measurable gains in process efficiency.

Simple compatibility and rapid insert replacement

Built to the S25S DDQNR ISO designation, this boring bar accepts DN-- 1506 indexable inserts (DDQN style), allowing fast insert changes without altering tool alignment. The concept of indexable inserts means that worn cutting edges are rotated or replaced rather than regrinding the whole tool, which reduces tooling costs and machine downtime. With a right-hand cut configuration and a shaft diameter of 25 mm, the bar fits standard clamping systems and maintains rigidity during heavy cuts, supporting both coarse material removal and finishing passes.

Reach, balance and suitability for production workshops

With a 250 mm overall length and a nominal outer diameter of 32 mm, the bar provides the reach required for deep bores while keeping weight low at 0.935 kg, which helps reduce spindle load and improves tool life. The 50 mm cutting height supports larger insert formats for higher productivity where applicable. Designed for series production and workshop use, the component supports CNC turning centres and conventional lathes that demand reliable, repeatable results. Metav Werkzeuge’s supply chain ensures consistent availability and a quality filter for European customers, reducing procurement uncertainty for plant managers and buyers.

Contact Metav Werkzeuge in Emmerich for detailed setup recommendations, compatibility checks for DN-- 1506 inserts and assistance selecting the correct clamping solution for Teknik Cutting Tools' boring bar K476TM — phone +49 2822 7131930 or eMail info@metav-werkzeuge.com

Technical data

• Article number: K476TM
• Manufacturer: Teknik Makina
• Model designation: S25S DDQNR
• Designation (EN): DDQN for DN-- Indexable Inserts

Core technical data

• Shaft diameter: 25 mm
• Overall length: 250 mm
• Diameter: 32 mm
• Cutting angle: 107.5°
• Cutting height: 50 mm
• Weight: 0.935 kg
• Cutting direction: Right

Special features

• Compatible with DN-- 1506 indexable inserts
• For DDQN indexable insert type
• ISO designation S25S DDQNR
• Clamping holder designation: 15

FAQ

Which insert type fits this boring bar? The boring bar K476TM is designed for DN-- 1506 indexable inserts, corresponding to DDQN-style inserts for internal turning.

Is the cutting direction right-hand or left-hand? This tool features a right-hand cutting direction; the geometry and ISO designation reflect a standard right-hand boring configuration.

What are the key dimensions for setting up the tool? Key values for setup are shaft diameter 25 mm, overall length 250 mm, outer diameter 32 mm, cutting height 50 mm and cutting angle 107.5° as listed for K476TM.

Which machines is this bar suited to? The bar is suitable for CNC lathes and conventional turning centres requiring a rigid, indexable-insert boring solution; its form and clamping diameter make it compatible with standard toolholders.

Manufacturer / Responsible: 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