Step drills for metal

Cobalt step drill for metal, steel, stainless steel, acrylic glass and non-ferrous metals Range: 4-12mm Diameters: 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 mm Number of runs: 2 Shank diameter: 6mm, with three faces against the protrusion in a glass box Total length(vÄ. shank): 80mm Max. drilled material thickness: 4mm Material: HSS-XE - high-alloy cobalt high-speed HSSE steel(68 HRC) Coating: BLUE-DUR, increase Drill life during drilling with very limited cooling(spray, paste), as well as dry cutting Cutting conditions - Steel: 1600 up to 550 rpm Cutting conditions - stainless steel: 800 to 230 rpm Smaller diameters can be drilled at higher speeds , with the increasing diameter of the drilling, it is necessary to reduce the cutting speed and speed. Failure to observe the speed or overheating the drill may cause it to become dull. Transitions to a larger diameter at the same time perfectly needle a drilled hole. Thanks to the spiral groove, the drilling is smooth, the chips do not stick, it causes low cutting forces, the drilled material has less rotation. The tool has a longer life.

Cobalt step drill for metal, steel, stainless steel, acrylic glass and non-ferrous metals Range: 4-20mm Diameters: 4 - 6 - 8 - 10 - 12 - 14 - 16 - 18 - 20 mm Number of pieces: 2 Shank diameter: 8mm, with three faces against in a glass box Total length(vÄ. shank): 70mm Max. thickness of drilled material: 4mm Material: HSS-XE - high-alloy cobalt high-speed HSSE steel(68 HRC) Coating: BLUE-DUR, increase Drill life during drilling with very limited cooling(spray, paste), as well as dry cutting Cutting conditions - Steel: 1600 up to 320 rpm Cutting conditions - stainless steel: 800 to 160 rpm Smaller diameters can be drilled at higher speeds , with the increasing diameter of the drilling, it is necessary to reduce the cutting speed and speed. Failure to observe the speed or overheating the drill may cause it to become dull. Transitions to a larger diameter at the same time perfectly needle a drilled hole. Thanks to the spiral groove, the drilling is smooth, the chips do not stick, it causes low cutting forces, the drilled material has less rotation. The tool has a longer life.

Cobalt step drill for metal, steel, stainless steel, acrylic glass and non-ferrous metals Range: 6-30mm Diameters: 6 - 8 - 10 - 12 - 14 - 16 - 18 - 20 - 22 - 24 - 26 - 28 - 30 -(32needing diameter) mm Number of runs: 2 Shank diameter: 10mm, with three anti-twist surfaces in the glass Total length(vě. shank): 98mm Max. drilled material thickness: 4mm Material: HSS-XE - high-alloy cobalt high-speed HSSE steel(68 HRC) Coating: BLUE-DUR, increase Drill life during drilling with very limited cooling(spray, paste), as well as dry cutting Cutting conditions - Steel: 1100 up to 260 rpm Cutting conditions - stainless steel: 550 to 120 rpm Smaller diameters can be drilled at higher speeds , with the increasing diameter of the drilling, it is necessary to reduce the cutting speed and speed. Failure to observe the speed or overheating the drill may cause it to become dull. Transitions to a larger diameter at the same time perfectly needle a drilled hole. Thanks to the spiral groove, the drilling is smooth, the chips do not stick, it causes low cutting forces, the drilled material has less rotation. The tool has a longer life.

Cobalt step drill for metal, steel, stainless steel, acrylic glass and non-ferrous metals Range: 6-30mm Diameters: 6 - 8 - 10 - 12 - 14 - 16 - 18 - 20 - 22 - 24 - 26 - 28 - 30 -(32needing diameter) mm Number of edges: 2 Shank diameter: 10mm, with three faces against rotation in the chuck Total length(incl. shank): 98mm Max. drilled material thickness: 4mm Material: HSS-XE - high-alloy cobalt high-speed HSSE steel(68 HRC) Coating: uncoated Cutting conditions - steel: 1100 to 260 rpm Cutting conditions - stainless steel: 550 to 120 rpm Smaller diameters can be drilled at higher speeds, with increasing drilling diameter it is necessary to reduce the cutting speed and speed. Failure to maintain the speed or overheating the drill may cause it to become dull. Transitions to a larger diameter also perfectly needle the drilled hole. Thanks to the spiral groove, the drilling is smooth, the chips do not stick, low cutting forces, the drilled material has fewer burrs and the tool has a longer endurance.

Cobalt step drill for metal, steel, stainless steel, acrylic glass and non-ferrous metals Range: 6-36mm Diameters: 6 - 8 - 10 - 12 - 14 - 16 - 18 - 20 - 22 - 24 - 26 - 28 - 30 - 33(36 needling diameter) mm Number of cutting edges: 2 Shank diameter: 10 mm, with three faces against rotation in the chuck Total length(vč . shank): 92mm Max. thickness of drilled material: 4mm Material: HSS-XE - high-alloy cobalt high-speed HSSE steel(68 HRC) Coating: BLUE-DUR, increases the life of the drill when drilling with very limited cooling(spray, paste), as well as for dry cutting Cutting conditions - steel: 1100 to 180 rpm Cutting conditions - stainless steel: 550 to 100 rpm Smaller diameters can be drilled at higher speeds, with increasing with the drilling diameter, the cutting speed and speed must be reduced. Failure to speed up or overheat the drill may cause it to become dull. At the same time, transitions to a larger diameter perfectly needle the drilled hole. Thanks to the spiral groove, the drilling is smooth, the chips do not stick, low cutting forces, the drilled material has less burrs and the tool has a longer life.

Cobalt step drill for metal, steel, stainless steel, acrylic glass and non-ferrous metals - for cable connections Range: 7-40,5mm Diameters: 7 - 10.5 - 12.5 - 14.5 - 16.5 - 18.5 - 20.5 - 23.5 - 25.5 - 30.5 - 32.5 - 38.5 - 40.5 (40.5 needling diameter) mm Number of edges: 2 Shank diameter: 12mm, with three anti-rotation faces in the chuck Overall length (incl. shank): 115mm Max. thickness of drilled material: 4mm / 6mm Material: HSS-XE - high-alloy cobalt high-speed HSSE steel (68 HRC) Coating: BLUE-DUR, increases the life of the drill when drilling with very limited cooling (spray, paste), as well as when cutting dry Cutting conditions - steel: 1000 to 160 rpm Cutting conditions - stainless steel: 450 to 100 rpm Smaller diameters can be drilled at higher speeds, with increasing drilling diameter it is necessary to reduce the cutting speed and speed. Failure to maintain the speed or overheating the drill may cause it to become dull. At the same time, transitions to a larger diameter perfectly needle the drilled hole. Thanks to the spiral groove, the drilling is smooth, the chips do not stick, low cutting forces, the drilled material has fewer burrs and the tool has a longer life.

Cobalt step drills for metal, steel, stainless steel, acrylic glass and non-ferrous metals Set contains drills: 1) Drill 4-12mm with strokes: 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 mm 2) Drill 4-20mm with strokes: 4 - 6 - 8 - 10 - 12 - 14 - 16 - 18 - 20 mm 3) Drill 6-30(32mm) with strokes: 6 - 8 - 10 - 12 - 14 - 16 - 18 - 20 - 22 - 24 - 26 - 28 - 30 -(32needing diameter) mm Number of edges: 2 Clamping shank diameter: 6mm; 8mm; 10mm, with three anti-rotation faces in the chuck Max. thickness of drilled material: 4mm Material: HSS-XE - high-alloy cobalt high-speed HSSE steel(68 HRC) Coating: BLUE-DUR, increases the life of the drill when drilling with very limited cooling(spray, paste), as well as for dry cutting Cutting conditions for drill 4-12mm - steel: 1600 to 550 rpm Cutting conditions for drill 4-12mm - stainless steel: 800 to 230 rpm Cutting conditions for drill 4-20mm - steel: 1600 to 320 rpm Cutting conditions for drill 4-20mm - stainless steel: 800 to 160 rpm Cutting conditions for drill 6-30mm - steel: 1100 to 260 rpm Cutting conditions for drill 6-30mm - stainless steel: 550 to 120 rpm Smaller diameters can be drilled at higher speeds, with increasing drilling diameter it is necessary to reduce the cutting speed and speed. Failure to maintain the speed or overheating the drill may cause it to become dull. Transitions to a larger diameter also perfectly needle the drilled hole. Thanks to the spiral groove, the drilling is smooth, the chips do not stick, low cutting forces, the drilled material has fewer burrs and the tool has a longer endurance.

Cobalt step drill for metal, steel, stainless steel, acrylic glass and non-ferrous metals Range: 6-38mm Diameters: 6 - 9 - 13 - 16 - 19 - 21 - 23 - 26 - 29 - 32 - 35 - 38 mm Number of cutting edges: 2 Shank diameter: 10 mm, with three faces against rotation in the chuck Total length(incl. shank): 100mm Max. thickness of drilled material: 4,5mm Material: HSS-XE - high-alloy cobalt high-speed HSSE steel(68 HRC) Coating: BLUE-DUR, increases the life of the drill when drilling with very limited cooling(spray, paste), as well as for dry cutting Cutting conditions - steel: 1100 to 180 rpm Cutting conditions - stainless steel: 550 to 100 rpm Smaller diameters can be drilled at higher speeds, as the drilling diameter increases, the cutting speed and speed need to be reduced. Failure to maintain the speed or overheating the drill may cause it to become dull. Transitions to a larger diameter also perfectly needle the drilled hole. Thanks to the spiral groove, the drilling is smooth, the chips do not stick, low cutting forces, the drilled material has fewer burrs and the tool has a longer endurance.

Cobalt step drill for metal, steel, stainless steel, acrylic glass and non-ferrous metals - for cable connections Range: 7-32,5mm Diameters: 7 - 10,5 - 12,5 - 14,5 - 16,5 - 18,5 - 20,5 - 23,5 - 25,5 - 30,5 - 32,5 mm Number of edges: 2 Shank diameter: 12mm, with three flats against rotation in the chuck Total length(incl. shank): 100mm Max. drilled material thickness: 3mm / 6mm Material: HSS-XE - high-alloy cobalt high-speed HSSE steel(68 HRC) Coating: BLUE-DUR, increases drill life when drilling with very limited cooling(spray, paste), as well as for dry cutting Cutting conditions - steel: 1000 to 250 rpm Cutting conditions - stainless steel: 550 to 100 rpm Smaller diameters can be drilled at higher speeds, as the drilling diameter increases, the cutting speed and speed need to be reduced. Failure to maintain the speed or overheating the drill may cause it to become dull. Transitions to a larger diameter also perfectly needle the drilled hole. Thanks to the spiral groove, the drilling is smooth, the chips do not stick, low cutting forces, the drilled material has fewer burrs and the tool has a longer endurance.

Cobalt step drill for metal, steel, stainless steel, acrylic glass and non-ferrous metals Range: 4-12mm Diameters: 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 mm Number of edges: 3 Shank diameter: 6 mm, with three faces against rotation in the chuck Total length(incl. shank): 65mm Max. thickness of drilled material: 4mm Material: HSS-XE - high-alloy cobalt high-speed HSSE steel(68 HRC) Coating: TiN-GOLD(basic coating), increases the life of the drill when drilling with very limited cooling(spray , paste), also for dry cutting Cutting conditions - steel: 1600 to 550 rpm Cutting conditions - stainless steel: 800 to 230 rpm Smaller diameters can be drilled at at higher speeds, with increasing drilling diameter, the cutting speed and speed need to be reduced. Failure to maintain the speed or overheating the drill may cause it to become dull. Transitions to a larger diameter also perfectly needle the drilled hole. Thanks to the spiral groove, the drilling is smooth, the chips do not stick, low cutting forces, the drilled material has fewer burrs and the tool has a longer endurance.

Cobalt step drill for metal, steel, stainless steel, acrylic glass and non-ferrous metals Range: 4-20mm Diameters: 4 - 6 - 8 - 10 - 12 - 14 - 16 - 18 - 20 mm Number of cutting edges: 3 Shank diameter: 6 mm, with three surfaces against rotation in the chuck Total length(incl. shank): 75mm Max. thickness of drilled material: 4mm Material: HSS-XE - high-alloy cobalt high-speed HSSE steel(68 HRC) Coating: TiN-GOLD(basic coating), increases the life of the drill when drilling with very limited cooling(spray , paste), also for dry cutting Cutting conditions - steel: 1600 to 320 rpm Cutting conditions - stainless steel: 800 to 160 rpm Smaller diameters can be drilled at at higher speeds, with increasing drilling diameter, the cutting speed and speed need to be reduced. Failure to maintain the speed or overheating the drill may cause it to become dull. Transitions to a larger diameter also perfectly needle the drilled hole. Thanks to the spiral groove, the drilling is smooth, the chips do not stick, low cutting forces, the drilled material has fewer burrs and the tool has a longer endurance.

Cobalt step drill for metal, steel, stainless steel, acrylic glass and non-ferrous metals Range: 6-30mm Diameters: 6 - 8 - 10 - 12 - 14 - 16 - 18 - 20 - 22 - 24 - 26 - 28 - 30 -(32needing diameter) mm Number of cutting edges: 3 Shank diameter: 10mm, with three faces against rotation in the chuck Total length(incl. shank): 100mm Max. thickness of drilled material: 4mm Material: HSS-XE - high-alloy cobalt high-speed HSSE steel(68 HRC) Coating: TiN-GOLD(basic coating), increases the life of the drill when drilling with very limited cooling(spray , paste), also for dry cutting Cutting conditions - steel: 1100 to 260 rpm Cutting conditions - stainless steel: 550 to 120 rpm Smaller diameters can be drilled at at higher speeds, with increasing drilling diameter, the cutting speed and speed need to be reduced. Failure to maintain the speed or overheating the drill may cause it to become dull. Transitions to a larger diameter also perfectly needle the drilled hole. Thanks to the spiral groove, the drilling is smooth, the chips do not stick, low cutting forces, the drilled material has fewer burrs and the tool has a longer endurance.