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Twist drill bit made of HSS-Co tool steel
Short series
Cobalt content Co in the alloy increases the durability of the drill. Alloying with cobalt also increases redness (the ability to withstand overheating without deterioration).
An additional hardening TiN coating (titanium nitride, gold-colored) is applied to the drill bit.
Right-handed, sharpened 90°, I.e. for soft and brittle materials.
Ground.
Two cutting edges, two spirals.
Shank diameter corresponds to drilling diameter.
Sharpening 90°angle defines the recommended field of application for drilling the following materials:
plastic
plexiglass
ebonite, celluloid
marble and other fragile materials
mild steel and alloys
Features:
drill type: twist
direction of rotation: right hand
grinding angle: 90°
steel grade: HSS-Co
cobalt content: ~ 1%
surface hardening coating: TiN
color: golden yellow
Attention!
Drilling of stainless steel must be done at the required drilling speeds, it is imperative to use coolant (cutting fluid). The use of coolant on any metal greatly increases the service life of the drill.
Recommended sharpening angles of drills
Material to be drilled
Angle of sharpening of a drill
Cast iron and steel
116…118
Steel forgings and hardened steel
125
Brass and soft bronze
130…140
Soft copper
125
Aluminum, babbitt
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.
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The data presented in the product description are for reference only and may differ from those indicated by the manufacturer.
