
DIN 6537 |
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| Manufacturing specifications |
Point grinding: relieved cone with secondary flank Point angle: greater than standard (140º) Web thinned: Guhring web thinning Form U Helix angle: standard Web thickness: greater than standard Web taper: none Flute form: standard Tolerance on diameter: m7 Oil feed: spiral through the body Shank: reinforced, with whistle notch flat, according DIN 6537 HE, h6 tolerance Other manufacturing specifications to DIN 6540. |
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| Range of applications |
High-performance drill for the drilling of long and short-chipping materials such as structural and case hardened steels, cast steels, heat-treatable steels and alloyed steels with a tensile strength of up to
1000 N/mm˛, including carbon steels, cast iron and high- alloyed AlSi-alloys. This tool is also available TiAIN- and TiCN-coated, for performance increase in special operations. Recoating is recommended when regrinding. TiCN-tools can be recoated with TiN (S-coat). Advantages, Suggestions Highest speed and feed rates possible (see Guroguide), high alignment accuracy with tight tolerance and excellent surface finish. Excellent self-centering qualities as well as producing short chips thanks to a concave cutting point geometry with special point grind and web thinning. Pre-conditions for use Powerful machines. No play in spindle bearings. Alignment accurate tool holders. Max. concentricity error of clamped tools: 0.02 mm. Chatterfree, mechanical feeds. The tools are available without whistle notch flat for the application in hydraulic chucks. High performance increase due to the FIREX coating! |
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| Sketch |
Tool material | Cutting direction | Surface | Ø-range | Series No. | |
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