STEP DRILLS Type and applications overview 76 - 79 ULTIMATECUT HSSE-Co 5 + RUnaTEC, spiral fluted with FLOWSTEP® tip 80 ULTIMATECUT HSS + RUnaTEC, spiral fluted with FLOWSTEP® tip 81 HSS + TiN + TiAIN + HSSE-Co 5, spiral fluted with spiral fluted 82 - 83 Crash barrier step drill HSS TiAlN, spiral fluted 83 HSS, spiral fluted - short 84 HSS + TiN + TiAlN + HSSE-Co 5, spiral fluted - inch dimensions 85 HSS + TiN, with 3 cutting edges, straight groove 86 HSS + TiN + TiAlN spiral fluted, for metric cable connections 87 Subland drilll type N, HSS 88 Short subland drill type N, HSS 89 Table of cutting speeds for step drills 90 Table of application for step drills 91

Step drill with FLOWSTEP® tip It lets you drill 6x more. It lets you drill 75% faster. It lets you center perfectly. FLOWSTEP® tip Precise centring = no slipping when drilling. Time saving due to faster drilling = drill more holes in the same time. Energy-saving drilling = drill more holes without stoppin

RUnaTEC coating Thanks to RUKO nano Technology (RUnaTEC), very high cutting speeds can be achieved in addition to low cutting speeds, thus significantly accelerating work processes. Other positive properties are the extremely high wear resistance and the significant reduction in material welding. FLOWSTEP® TECHNOLOGY FLOWSTEP® Technology Controllable on sensitive materials such as thin-walled sheet metal and acrylic glass. Powerful with tough materials such as stainless steel. The cutting edge geometry enables a smooth, seamless transition between the different diamete

Point angle Material thickness Cutting edges Type and applications overview

Main application (^) Other application RIIKO

Main application (^) Other application RIIKO 79

UITIMATECUT® ULTIMATECUT step drill HSSE-Co 5,spiral fluted with FLOWSTEP® tip 02 • Perfect centering, avoiding slipping even on round surfaces such as pipe and tube. • Easy and smooth drilling process, without jamming in the material. • Extremely fast and energy-saving drilling. • Significantly longer tool life - up to 6x more holes possible. • Optimal performance in hand-held (cordless) power tool drill machines. Packaging: plastic tube ULTIMATECUT step drill set with FLOWSTEP® tip spiral fluted, sizes 0/9, 1,2

UUIMATECUT- ULTIMATECUT step drill HSS,spiral fluted with FLOWSTEP® tip FLOWSTEP® tip • Perfect centering, avoiding slipping even on round surfaces such as pipe and tube. • Easy and smooth drilling process, without jamming in the material. • Extremely fast and energy-saving drilling. • Significantly longer tool life - up to 6x more holes possible. • Optimal performance in hand-held (cordless) power tool drill machines. Packaging: plastic tube ULTIMATECUT step drill set HSS with FLOWSTEP® tip spiral fluted, sizes 0/9, 1, 2 Main application

Step drill HSS and HSSE-Co 5, spiral fluted The step drill with specially developed FLOWSTEP® technology enables seamless transitions between the different diameters. Each individual step has a specially developed undercut that guides the step drill seamlessly and in a controlled manner to the next step after drilling through each step. This enables a noticeably smoother and quieter drilling process. The deep-ground and spiral-shaped flute offers absolutely smooth running and high cutting performance. In particular, non-breaking chips are removed cleanly as with a twist drill. This minimises...

Step drill set spiral fluted, sizes 0/9, 1, 2 Mill Crash barrier step drill HSS TiAIN, spiral fluted Specially designed for drilling crash barriers. Cooling recommended but not required (increased service life) Packaging: plastic tube

Step drill bit HSS, spiral fluted The CBN ground and spiral flutes guarantee quiet running and high cutting performance. Especially the chip flow is optimized, so even long, non-breaking chips will be removed easily. The optimized chip flow protects the cutting edges and reduces built-up edges and cold weld marks. The chamfer on the base of the cone makes withdrawal of the tool from the material simple when through hole drilling. Packaging: plastic tube Step drill HSS, spiral fluted - short Packaging: plastic tube

Step drill HSS and HSSE-Co 5, spiral fluted - inch dimensions The deep-ground and spiral flute offers absolutely smooth running and high cutting performance. In particular, non-breaking chips are removed cleanly as with a twist drill. This minimises the formation of built-up edges and cold welding on the cutting edges. The cone facilitates retraction when drilling through sheet metal. Packaging: plastic tube

Step drill HSS, with 3 cutting edges, straight groove The deep-ground flutes on step drills with 3 cutting edges ensure absolutely chatter-free work. Due to the lower cutting edge load, a higher feed rate is possible, especially with soft materials such as non-ferrous metals. The cone facilitates retraction when drilling through sheet metal. Packaging: plastic tube

Step drill HSS, spiral fluted, for metric cable connections Packaging: plastic tube Step drill (reamer) HSS, without tip Packaging: plastic tube

Subland drill type N HSS Enables drilling and sinking combined in one step. Note: adjust the cutting speed according to the big diameter and the feed rate according to the small diameter. Packaging: plastic tube 90° fine grade for through hole For efficient drilling of through holes and screw head counterborings with 90° angle. 90° for thread core hole For efficient drilling of tapping holes and countersinkings with 90° angle.

Short subland drill type N HSS HSS Short and torsion stable drill, suitable for the use on CNC or NC machines. The drilling and countersinking is made in one step. Note: adjust the cutting speed according to the big diameter and the feed rate according to the small diameter. Packaging: plastic tube 90° fine grade for through hole For efficient drilling of through holes and screw head counterborings with 90° angle. Main application