Cobalt Drill Bits Set M 35 Metric Straight Shank Heat Resistant Metal 1.5-6.5mm 13 Pcs

High Speed Steel Surface. Good toughness of materials, wear resistance, drilling ability. Apply to: copper, aluminum, plastic and wood.Extremely high hardness, in the drilling work has excellent processing performance,All grinding ligament sticky milling work hole smooth no burr.Different types of drill bits are used to cut holes in different types of materials.Drill through metal like a !Cobalt drill bits are not made of cobalt, but rather a steel alloy with certain percent cobalt. The cobalt increases the strength of the steel and makes it more heat-resistant; this is an important factor in drilling hard materials because the friction of metal against metal can produce high temperatures that damage the material or the drill bit.Tests shows that the M 35 cobalt steel drill bits can penetrate a 5mm-thick 304 stainless steel plate in 5 seconds.Notice: The working life of the drill bits can be largely prolonged by using with cooling liquid.Speicifcations:Material: 95%high speed Steel/Cobalt SteelFeature:professional,Domestic,For Wood, Plastic And Aluminum For DIY, Home And General Building/Engineering UsingModel Number: 105379length: 6cm ~ 11.7cm/2.36"""" ~ 4.61""""(Approx.)Length: 6cm ~ 11.7cm/2.36"""" ~ 4.61""""(Approx.)Package includes:HSS 6542 Drill Bit Set Apply to: copper, aluminum, plastic and wood.HSS 4241 Drill Bit Set Apply to: aluminum, plastic and wood.Cobalt Drill Bit Set Apply to: Steel, iron, copper, aluminum, plastic and wood.13 x high speed Steel/Cobalt Steel Drill Bits1 x 1.5mm Drilling Bit1 x 2.0mm Drilling Bit1 x 2.5mm Drilling Bit1 x 3.0mm Drilling Bit1 x 3.2mm Drilling Bit1 x 3.5mm Drilling Bit1 x 4.0mm Drilling Bit1 x 4.5mm Drilling Bit1 x 4.8mm Drilling Bit1 x 5.0mm Drilling Bit1 x 5.5mm Drilling Bit1 x 6.0mm Drilling Bit1 x 6.5mm Drilling BitNo need for shaking or reducing friction, capable of withstanding heavy-load operations, making the cutting process smoother

• High Speed Steel Surface. Good toughness of materials, wear resistance, drilling ability. Apply to: copper, aluminum, plastic and wood.
• Extremely high hardness, in the drilling work has excellent processing performance,All grinding ligament sticky milling work hole smooth no burr.
• Different types of drill bits are used to cut holes in different types of materials.Drill through metal like a !
• Cobalt drill bits are not made of cobalt, but rather a steel alloy with certain percent cobalt. The cobalt increases the strength of the steel and makes it more heat-resistant; this is an important factor in drilling hard materials because the friction of metal against metal can produce high temperatures that damage the material or the drill bit.
• Tests shows that the M 35 cobalt steel drill bits can penetrate a 5mm-thick 304 stainless steel plate in 5 seconds.
• It is convenient to carry. The drill bit is placed in a plastic box, which makes it easy to store and carry .