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The cobalt Co content in the alloy increases drill life. Alloying with cobalt also increases redness (the ability to withstand overheating without deterioration of properties).
Without additional hardening coating.
Right-handed, sharpened 135 °, i.e. for hard materials.
Ground.
Two cutting edges, two spirals.
Shank diameter corresponds to drilling diameter.
Angle sharpening 135°defines the recommended area of application for drilling the following materials:
alloy and non-alloy steel
non-ferrous metals
different grades of cast iron
cermets
hard plastic, including fiberglass
Features:
drill type: twist
direction of rotation: right hand
sharpening angle: 135°
cobalt content: ~ 1%
surface hardening: no
color: dark bronze
Attention!
Drilling of stainless steel must be done at the required drilling speeds, be sure to use coolant (cutting fluid). The use of coolant on any metal significantly increases the resource
drills.
Recommended sharpening angles of drills
Material that will be drilled
Angle of sharpening drills
Cast iron and steel
116…118
Steel forgings and hardened steel
125
Brass and soft bronze
130…140
Soft copper
125
Aluminum , babbit
130…140
Silumin
90…100
Magnesium alloys
110…120
Ebonite, celluloid
80…90
Marble and other fragile materials
90…100
Organic glass
70
Plastics
50…60
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The data presented in the product description are for reference only and may differ from those indicated by the manufacturer.
To carry out technical calculations and obtain the exact parameters of the goods, use the datasheets from the manufacturer's website.
If you need additional information, or you found an error in the description, or have other questions about this product, then our manager will help you: Ярослав
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The data presented in the product description are for reference only and may differ from those indicated by the manufacturer.
