Back to drilling & cutting
Swiftfix in Southampton supply a large range of Step Drills
and Cone Drill by Ruko and Alpen.
Step Drill made by Ruko are available in HSS, HSS Cobalt and HSS Titanium.
Contact Swiftfix on 023 80 446644 or email us at firstname.lastname@example.org for further information and prices.
Ruko CBN ground spiral fluts enable
very sharp and burr-free cutting edges compared to ordinary milled flutes. Especially the chip flow is optimised, so even
long, non-breaking chips will be easily removed. The optimised chip flow protects the cutting edges and reduces built up edges
and cold weld marks. Due to these special features, cutting performance and tool life are extended significantly.
Each step has a radially adjusted relief produced CBN grinding that relates directly to the diameter of the step. This means
the cutting edge is always the highest point of the diameter.
Each step is axially CBN relief ground. This means
the cutting edge is always the highest point of the axial cutting axis.
The cutting edge of each step has relief
angle. This means the cutting edge is also the highest point in advance direction.
The CBN ground bit ensures centering
and spot-drilling even in thin walled material.
Step drills are the ideal tool for
sheet metal working in the following sectors of industries, Electrical (size 4 and size 9), Sanitary
Heating Engineering (size 6 & 7), Automotive & Mechanical Engineering, Aviation (size 0/5, size 0/9, size 1, size
size 5) and Switching systems (size 0/9k, size 1k, size 2k) up to 2.0mm sheet material.
This tough tool
is suitable for all standard industrial materials; non ferrous metal, special steel, thermoplastics and duroplastics
well as sheet material up to 4.0mm thickness.
This durable and versatile tool will centre, spot drill, bore, bore
and debur- all in one smooth high performance working cycle.