PFERD Tools Main Catalogue Page 212
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Drilling tools HSS spiral drill d1 [mm] l2 [mm] l1 [mm] a [°] 10.2 10.5 11 11.5 12 12.5 13 43 43 47 47 51 51 51 89 89 95 95 102 102 102 135 135 135 135 135 135 135 Spiral angle β [°] 30 30 30 30 30 30 30 Version INOX INOX INOX INOX INOX INOX INOX 5 5 5 5 5 5 5 Item no. Designation 25203959 25203960 25203961 25203962 25203963 25203964 25203965 SPB DIN 1897 HSSE N 10.2 INOX SPB DIN 1897 HSSE N 10.5 INOX SPB DIN 1897 HSSE N 11.0 INOX SPB DIN 1897 HSSE N 11.5 INOX SPB DIN 1897 HSSE N 12.0 INOX SPB DIN 1897 HSSE N 12.5 INOX SPB DIN 1897 HSSE N 13.0 INOX HSS step drills Recommended rotational speed range [RPM] To determine the recommended cutting speed range [m/min], please proceed as follows: ① Select the material group to be machined. ② Select the type. ③ Establish the cutting speed range. ① Material group Steel, Steels up to 700 N/mm² cast steel Steels over 700 N/mm² Rust and acid-resistant steels Stainless steel (INOX) Non-ferrous metals Soft non-ferrous metals Hard non-ferrous metals Plastics, other materials To determine the recommended rotational speed range [RPM], please proceed as follows: ④ Select the required diameter. ⑤ The cutting speed range and the diameter determine the recommended rotational speed range. Construction steels, carbon steels, tool steels, alloyed and non-alloyed steels, case-hardened steels, cast steel, tempering steels Austenitic and ferritic stainless steels Aluminium alloys, brass, copper, zinc Bronze, titanium/titanium alloys, hard aluminium alloys (high Si content) Fibre-reinforced thermoplastics and duroplastics, hard rubber, wood ② Design HSS HICOAT HC-FEP HICOAT HC-FEP ③ Cutting speed HICOAT HC-FEP 10–20 m/min HSS HICOAT HC-FEP 20–30 m/min 10–20 m/min 20–30 m/min HICOAT HC-FEP HSS HICOAT HC-FEP 10–20 m/min Catalogue 2 | 123 2
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