PFERD HSS Step Drill, 4mm-20mm drilling range in 9 steps

PFERD Step Drills are sturdy high-performance tools for burr-free drilling and deburring of sheet metal, pipes and profiles. Materials up to 4 mm thick can be drilled and deburred easily in a single step. PFERD also offers step drills with a high-quality HICOAT coating. To ensure reliable torque transmission, all step drills have a three-surface shaft.

Advantages:
– Drilling and deburring in a single step.
– Completely smooth running and a high cutting performance.
– The high-quality drill tip ensures effortless centring and drilling.
– The tool taper makes it easier to pull back from drilled plates.
– Chips which do not break are neatly removed as with a spiral drill.
– Built-up edges and cold welding on the blades are prevented.

Materials that can be worked:
– Steel
– Cast steel
– Stainless steel (INOX)
– Non-ferrous metals
– Plastics

Applications:
– Drilling
– Deburring

Recommendations for use:
– Only use machines that are intended for use with the relevant tool.
– Ensure correct Personal Protective Equipment is worn while using the tool.
– Use HSS step drills on sheets, pipes and profiles with a maximum thickness of 4 mm.
– Use cutting oil/compressed air as a coolant and lubricant in the case of step drills without a coating. (Smoother drilling action and extended service life.)
– Avoid material cross contamination.

Operating Instructions:
– Observe the following specifications and recommended rotational speeds:

STB HSS 04-20/8
Step Drill Bit HSS
Number of drill steps : 9
Drilling diameter: 4mm to 20mm
Shank diameter: 8mm
Overall Length : 75mm

STB HSS 04-20/8
Steel and Cast Steel up to 700 N/mm2: 2 400 (4mm) – 320 (20mm) RPM
Hard Non Ferrous Metals: 2 400 (4mm) – 320 (20mm) RPM
Soft Non Ferrous Metals: 2 400 (4mm) – 320 (20mm) RPM
Plastics and Other Materials: 1 600 (4mm) – 160 (20mm) RPM

For further operating instructions or product information, please visit www.pferd.com or any of our social media pages.

What’s in the box
One HSS Step Drill. Step drill Drill is supplied in a practical, and reusable, POS cardboard box which protects it from dirt and damage.