Two-stage drills

Quality Czech step drill for metal Step drill for holes for shank and Allen screw head 180 ° Helix angle: 25 ° to 30 ° Tip angle: 118 ° and 180 ° Form: A Material: HSS Standard: CSN221252 When drilling, lower cutting conditions than the standards for conventional drills must be selected. Usage: Step drills with four chamfers are recommended for drilling holes for screws and at the same time countersinking for cylindrical screw heads in components made of non-alloy and alloy steel and cast steel up to 800 N / mm2, gray, malleable and ductile cast iron, aluminum alloys, etc. If you need a different size, see the enclosed photos - see DIN8376 data sheet - for German screws.

Quality Czech step drill for metal Step drill for holes for shank and Allen screw head 180 ° Helix angle: 25 ° to 30 ° Tip angle: 118 ° and 180 ° Form: A Material: HSS Standard: CSN221253 When drilling, lower cutting conditions than the standards for conventional drills must be selected. Usage: Step drills with four chamfers are recommended for drilling holes for screws and at the same time countersinking for cylindrical screw heads in components made of non-alloy and alloy steel and cast steel up to 800 N / mm2, gray, malleable and ductile cast iron, aluminum alloys, etc. If you need a different size, see the enclosed photos - see DIN8377 data sheet - for German screws.

Quality Czech step drill for metal Step drill for holes for shank and countersunk screw head 90 ° Helix angle: 25 ° to 30 ° Tip angle: 118 ° and 90 ° Form: A Material: HSS Standard: CSN221255 When drilling, lower cutting conditions than the standards for conventional drills must be selected. Usage: Step drills with four chamfers are recommended for drilling holes for screws and at the same time countersinking for cylindrical screw heads in components made of non-alloy and alloy steel and cast steel up to 800 N / mm2, gray, malleable and ductile cast iron, aluminum alloys, etc. If you need a different size, see the enclosed photos - see DIN8375 data sheet - for German screws.

Quality Czech step drill for metal Step drill for thread holes and countersunk screw head 90 ° Helix angle: 25 ° to 30 ° Tip angle: 118 ° and 90 ° Form: A Material: HSS Standard: CSN221259 When drilling, lower cutting conditions than the standards for conventional drills must be selected. Usage: Step drills with four chamfers are recommended for drilling holes for screws and at the same time countersinking for cylindrical screw heads in components made of non-alloy and alloy steel and cast steel up to 800 N / mm2, gray, malleable and ductile cast iron, aluminum alloys, etc. If you need a different size, see the enclosed photos - see DIN8379 data sheet - for German screws.

Quality Czech step drill for metal Material: HSS Shank: cylindrical When drilling, lower cutting conditions than the standards for conventional drills must be selected.

Quality Czech step drill for metal Material: HSS Stem: morse cone When drilling, lower cutting conditions than the standards for conventional drills must be selected.

Quality Czech step drill for metal Step drill for thread holes and countersunk screw head 90 ° Helix angle: 25 ° to 30 ° Tip angle: 118 ° and 90 ° Form: A Material: HSS Standard: DIN8374 / PN221254 When drilling, lower cutting conditions than the standards for conventional drills must be selected. Usage: Step drills with four chamfers are recommended for drilling holes for screws and at the same time countersinking for cylindrical screw heads in components made of non-alloy and alloy steel and cast steel up to 800 N / mm2, gray, malleable and ductile cast iron, aluminum alloys, etc.

Quality Czech step drill for metal Step drill for holes for shank and Allen screw head 180 ° Helix angle: 25 ° to 30 ° Tip angle: 118 ° and 180 ° Form: A Material: HSS Standard: DIN8376 When drilling, lower cutting conditions than the standards for conventional drills must be selected. Usage: Step drills with four chamfers are recommended for drilling holes for screws and at the same time countersinking for cylindrical screw heads in components made of non-alloy and alloy steel and cast steel up to 800 N / mm2, gray, malleable and ductile cast iron, aluminum alloys, etc.

Quality Czech step drill for metal Step drill for holes for shank and countersunk screw head 90 ° Helix angle: 25 ° to 30 ° Tip angle: 118 ° and 90 ° Form: A Material: HSS Standard: PN221254 When drilling, lower cutting conditions than the standards for conventional drills must be selected. Usage: Step drills with four chamfers are recommended for drilling holes for screws and at the same time countersinking for cylindrical screw heads in components made of non-alloy and alloy steel and cast steel up to 800 N / mm2, gray, malleable and ductile cast iron, aluminum alloys, etc. If you need a different size, see the enclosed photos - see DIN8374 data sheet - for German screws.

Quality Czech step drill for metal Step drill for thread holes and countersunk screw head 90 ° Helix angle: 25 ° to 30 ° Tip angle: 118 ° and 90 ° Form: A Material: HSS Standard: PN221258 When drilling, lower cutting conditions than the standards for conventional drills must be selected. Usage: Step drills with four chamfers are recommended for drilling holes for screws and at the same time countersinking for cylindrical screw heads in components made of non-alloy and alloy steel and cast steel up to 800 N / mm2, gray, malleable and ductile cast iron, aluminum alloys, etc. If you need a different size, see the enclosed photos - see DIN8378 data sheet - for German screws.

Two-stage cobalt drill Drilling diameter / countersinking diameter: according to the selected variant Tip angle: 118° Material: cobalt HSS-XE steel Coating: PVD TiAlN, TITAN-TEC Standard: DIN8374 Suitable for screws according to the standard: DIN-ISO 273, ISO 2009, ISO 2010, ISO 7046 / DIN 963, DIN 964, DIN 965, DIN 966 Usage : Steel with strength up to 500N/mm2 Steel with strength up to 800N/mm2 Steel with strength up to 1000N/mm2 Stainless steel with strength up to 900N/mm2 Stainless steel with strength over 900N/mm2 Cast iron, aluminum Cutting conditions - see attached photo

Two-stage cobalt drill Drilling diameter / countersinking diameter: according to the selected variant Tip angle: 118° Material: cobalt HSS-XE steel Coating: PVD TiAlN, TITAN-TEC Standard: DIN8376 Suitable for screws with a through hole according to the standard: DIN-ISO 273 Usage : Steel with strength up to 500N/mm2 Steel with strength up to 800N/mm2 Steel with strength up to 1000N/mm2 Stainless steel with strength up to 900N/mm2 Stainless steel with strength over 900N/mm2 Cast iron, aluminum Cutting conditions - see attached photo