Tungaloy Corporation has announced the expansion of its AddMeisterDrill series with the introduction of the new DMF drill head. This addition enables flat-bottom hole machining in small diameters ranging from 4 mm to 5.9 mm, all in a single, high-precision operation.
Challenges and Trends
In machining components like sleeves and small valve parts used in automatic and compact lathes, there is often a requirement for flat-bottom holes. Traditionally, this involved using a drill with a pointed tip followed by a separate end mill to flatten the hole bottom adding extra machining steps and requiring multiple tools.
Furthermore, when preparing tap holes for M5–M6 class threads, achieving sufficient hole depth with high accuracy becomes difficult due to the limited wall thickness of the parts. Under these conditions, maintaining both machinability and quality has remained a persistent challenge. These market requirements highlight the need for more efficient and precise machining solutions.
Product Highlights
The AddMeisterDrill/DrillMeister is a drilling solution equipped with an exchangeable head system that delivers high machining performance and extended tool life. With a wide selection of drill heads, it accommodates a broad spectrum of drilling applications. Its easy-to-replace head design minimizes setup time, making it ideal for small to medium diameters while boosting productivity and cost-efficiency.
Key Benefits and Features
Feature 1: Flat-Bottom Hole Machining from Just 4 mm Diameter
– The DMF head allows flat-bottom hole machining in the small-diameter range of 4 mm to 5.9 mm
– A pilot cutting edge ensures stable tool engagement, eliminating the need for a pilot hole—even for depths up to 5×D
– Delivers high-precision hole diameter and bottom surface finish in a single operation, enabling process integration
Feature 2: Extended Tool Life and High-Efficiency Machining with AH9130 Grade
– Equipped with the wear-resistant AH9130 coated grade for prolonged tool life
– Reduces the frequency of tool changes, minimizing machine downtime
– The exchangeable insert design offers a cost-effective alternative to solid drills while maintaining high productivity
Feature 3: Easy-to-Change Head Mechanism for Improved Workability
– A specialized key design enables quick and effortless head replacement, even in confined spaces
– Greatly reduces setup time, particularly in machine environments like automatic lathes
– Eliminates the need for re-adjustment after head changes, ensuring consistent machining quality
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