Deep Hole Drilling Solutions

Single flute gundrills can machine straight, deep holes and hold excellent finishes. This tool is a general-purpose drill designed for deep hole drilling in most materials, can be custom fit to each application, and is available in various carbide grades and coatings to optimize tool life and chip evacuation/formation. The tool length ranges from 0.093" (2.4mm) to 1.5" (38.1mm) and in custom lengths.

Solid carbide single flute gundrills are deep hole drills that can run at higher feed rates than conventional gundrills. They don’t require whip support for lengths up to 80x the cutting diameter, and are highly polished, aiding in maximizing chip evacuation. These tools can be designed with special end forms to meet custom requirements. Special coatings are chosen based on the application to enhance overall tool performance.

Double jet gundrills keep constant coolant on the cutting edge during the entry, in the cut, and breakthroughs while machining. This tool allows the coolant fluid jet to assist in breaking the chip. The diameter range of the double jet gundrill is 0.250" (6.35mm) to 1.5" (38.1mm) and it’s available in customer specific lengths.

Solid carbide twist drills are available in lengths up to 30x diameter and to custom lengths and are reversed-engineered for specific applications.

Double crimp gundrills can obtain double the feed rate compared to the single flute gundrill. Based on geometric angles, clearances, and back taper, the double crimp gundrill can reduce chip load by 50% and achieve higher penetration.

Two-flute two-hole gundrills are used for high penetration deep hole applications. The body is milled out of bar stock which maximizes the rigidity reducing the body deflection at higher rpm.

Star SU LLC https://www.star-su.com