Two-stage drills

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: DIN8378 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

Short NC countersinking two-stage drill Drilling diameter / countersinking diameter: according to the selected variant Tip angle: 118° Material: cobalt HSS-XE steel Coating: PVD TiAlN, TITAN-TEC Standard: DIN1897 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

Short NC countersinking two-stage drill Drilling diameter / countersinking diameter: according to the selected variant Tip angle: 118° Material: cobalt HSS-XE steel Coating: PVD TiAlN, TITAN-TEC Standard: DIN1897 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

Two-stage cobalt drill Drilled diameter / countersink diameter: according to the selected variant Tip angle: 118 ° Material: cobalt HSS-XE steel Coating: TITAN-TEC Standard: DIN1897 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

Czech metal step drill 9,0x6,8 mm for screw M8 Step drill for hole for screw and recessed 90 ° head screw Overall length: 125mm Screw length total / Front: 80 / 23mm Helix Angle: 25 ° to 30 ° Angle of Tip: 118 ° and 90 ° Form: A DIN8378 / PN221258 Drill bit is cut to two diameters: 6,8mm and 9,0mm Shank diameter: 9,0mm Drilling requires lower cutting conditions than standard normatives for classical drills. Usage: Stepped drills with four facets are recommended for drilling screw holes and at the same time recesses for cylindrical screw heads in non-alloy and alloy steel and steel castings to a strength of 800 N / mm2, gray, tempered ductile cast iron, aluminum alloys, and the like.

Czech metal step drill 14,0x10,2 mm for M12 screw Step drill bit for thread and recessed 90 ° head screw Overall length: 155mm Screw length total / Front End: 105 / 30mm Helix Angle: 25 ° to 30 ° Angle of Tip: 118 ° and 90 ° Form: A HSS DIN8378 / PN221258 Drill is sharpened to two diameters: 10.2mm and 14.0mm Shank diameter: 10.2mm Drilling requires lower cutting conditions than standard normatives for classical drills. Usage: Stepped drills with four facets are recommended for drilling screw holes and at the same time recesses for cylindrical screw heads in non-alloy and alloy steel and steel castings to a strength of 800 N / mm2, gray, tempered ductile cast iron, aluminum alloys, and the like.

Czech metal step drill 9,5x5,3 mm for M5 screw Stepper drill for shaft holes and recessed 90 ° head screw Overall length: 162mm Overall length / front: 81 / 13mm Morse cone: MK1 Helix Angle: 25 ° to 30 ° Angle of Tip: 118 ° and 90 ° Form: A Material: HSS Standard: CSN221255 Drill is abraded to two diameters: 5.3mm and 9.5mm Drilling requires lower cutting conditions than standard normatives for classical drills. Usage: Stepped drills with four facets are recommended for drilling screw holes and at the same time recesses for cylindrical screw heads in non-alloy and alloy steel and steel castings to a strength of 800 N / mm2, gray, tempered ductile cast iron, aluminum alloys, etc. Cat. no .: K550950V000S If you need a different size, see the enclosed photos - see the DIN8375 catalog sheet for German screws.

Czech metal step drill 11,4x6,4 mm for M6 bolt Step drill for shaft holes and recessed 90 ° head screw Overall length: 175mm Screw length total / front: 94 / 15mm Morse cone: MK1 Helix Angle: 25 ° to 30 ° Angle of Tip: 118 ° and 90 ° Form: A Material: HSS Standard: CSN221255 Drill is sharpened to two diameters: 6,4mm and 11,4mm Drilling requires lower cutting conditions than standard normatives for conventional drills. Usage: Stepped drills with four facets are recommended for drilling screw holes and at the same time recesses for cylindrical screw heads in non-alloy and alloy steel and steel castings to a strength of 800 N / mm2, gray, tempered ductile cast iron, aluminum alloys, etc. Cat. No .: K551140V000S If you need a different size, see the enclosed photos - see the DIN8375 catalog sheet for German screws.

Czech metal step drill 15,4x8,4 mm for M8 screw Stepper drill for shaft holes and recessed 90 ° head screw Overall length: 218mm Overall length / front: 120 / 19mm Morse cone: MK2 Helix Angle: 25 ° to 30 ° Angle of Tip: 118 ° and 90 ° Form: A Material: HSS Standard: CSN221255 Drill is sharpened to two diameters: 8.4mm and 15.4mm Drilling requires lower cutting conditions than standard normatives for classical drills. Usage: Stepped drills with four facets are recommended for drilling screw holes and at the same time recesses for cylindrical screw heads in non-alloy and alloy steel and steel castings to a strength of 800 N / mm2, gray, tempered ductile cast iron, aluminum alloys, etc. Cat. no .: K551540V000S If you need a different size, see the enclosed photos - see the DIN8375 catalog sheet for German screws.

Czech metal step drill 18,5x10,5 mm for screw M10 Step drill bit for shaft and recessed 90 ° screw head Overall length: 233mm Screw length overall / front: 135 / 23mm Morse cone: MK2 Helix Angle: 25 ° to 30 ° Angle: 118 ° and 90 ° Form: A Material: HSS Standard: CSN221255 Drill is cut to two diameters: 10.5mm and 18.5mm Drilling requires lower cutting conditions than standard normatives for classical drills. Usage: Stepped drills with four facets are recommended for drilling screw holes and at the same time recesses for cylindrical screw heads in non-alloy and alloy steel and steel castings to a strength of 800 N / mm2, gray, tempered ductile cast iron, aluminum alloys, etc. Cat. No .: K551850V000S If you need a different size, see the enclosed photographs - see the DIN8375 catalog sheet - for German screws.

Czech metal step drill bit 22,5x13,0 mm for M12 screw Stepper drill for shaft holes and recessed 90 ° head screw Overall length: 253mm Screw length overall / front: 155 / 27mm Morse cone: MK2 Helix angle: 25 ° to 30 ° Angle of the tip: 118 ° and 90 ° Form: A Material: HSS Standard: CSN221255 Drill is cut to two diameters: 13.0mm and 22.5mm Drilling requires lower cutting conditions than standard normatives for classical drills. Usage: Stepped drills with four facets are recommended for drilling screw holes and at the same time recesses for cylindrical screw heads in non-alloy and alloy steel and steel castings to a strength of 800 N / mm2, gray, tempered ductile cast iron, aluminum alloys, etc. Cat. No .: K552250F000S If you need a different size, see the enclosed photographs - see the DIN8375 catalog sheet - for German screws.

Czech metal step drill 25,0x15,0 mm for screw M14 Stepper drill for shaft holes and recessed 90 ° head screw Overall length: 281mm Screw length overall / front: 160 / 31mm Morse cone: MK3 Helix Angle: 25 ° to 30 ° Angle of Tip: 118 ° and 90 ° Form: A Material: HSS Standard: CSN221255 Drill is sharpened to two diameters: 15.0mm and 25.0mm Drilling requires lower cutting conditions than standard normatives for classical drills. Usage: Stepped drills with four facets are recommended for drilling screw holes and at the same time recesses for cylindrical screw heads in non-alloy and alloy steel and steel castings to a strength of 800 N / mm2, gray, tempered ductile cast iron, aluminum alloys, etc. Cat. No .: K552500F000S If you need a different size, see the enclosed photos - see the DIN8375 catalog sheet for German screws.