Ruko main catalogue precision tools Strana 17
Nabídka komerčních zákazníků **Nejlépe prodávané z Ruko
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Bez dopravy
Point grinding and pointing according to DIN 1412 N Shape N: Helical point normal ground Application: For all normal drilling work in steel, non-ferrous metal and plastic. The point angles depend on the ease with which the materials can be cut. Advantages: Powerful main cut, resistant to impact and lateral forces. Simple manual grinding possible. Disadvantages: Broad cutting edge requires considerable pressure. A Shape A: Cut chisel edge Application: For all normal drilling work using drills with a strong core, for drilling into solid materials with larger drill diameters. Advantages: Good centering when starting to drill, as the length of the chisel edge is reduced to 1/10 of the drill diameter, and fewer pressure is required. Disadvantages: Additional regrinding work. B Shape B: Cut chisel edge with corrected major cutting edge Application: For r drilling high-density steel, for manganese steel with over 10 % Mn, for hard spring steel and for drilling out. Advantages: Resistant to impact, one-way load and lateral forces. Does not catch in thin workpieces. Disadvantages: High pressure required, tendency to slip, extra work involved in regrinding. C Shape C: Split point Application: For high pressure required, tendency to slip, extra work involved in regrinding. Advantages: Good centering, little pressure required. Chip spreading improves chip removal. Disadvantages: Perfect grinding only possible by machine. D Shape D: Ground for grey cast iron Application: For drilling grey cast iron, malleable cast iron and forgings. Advantages: Wear on cutting corners is reduced by extended major cutting edges, resistant to impact, good heat conductivity, all giving improved tool life. Disadvantages: Perfect regrinding only possible by machine. E Shape E: Centre point Application: For drilling sheet-metal and soft materials, for blind holes with flat bottoms. Advantages: Good centering, minimal formation of burrs when through-drilling, precise drilling in thin sheets and pipes, does not catch. Available in diameters of Ø 2.5 mm upwards. Disadvantages: Sensitive to impact and one-way loading. Can only be ground to perfection by machine. N A B C D E 01 Other bevelling and sharpening U U Shape U: Special ground Applications: For drills with sturdy profiles suitable for use in automated processing, with narrow grooves and strong cores. Advantages: extremely good self-centering behaviour when maximum cutting valuminiumes are employed. Concave cutting produces short metal chips. Disadvantages: Extra work involved in regrinding. 15
324 Stránky | Platí do 12/2025 | Previous page | Další stránka
Vyberte si jazyk
Legální problémy
Výrobce je výhradně zodpovědný za obsah, cenu a detaily produktů a nabídek uvedených v katalozích. Technické a optické změny výrobce a chyby jsou vyhrazeny.
Formulář žádosti o speciální produkty
Služba nákupu ToolTeam®
Hledáte produkty, které jsou uvedeny v katalogu, ale nelze je zakoupit přímo online?Naše služba nákupu vám ráda zpracuje nezávaznou a individuální nabídku.