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Dormer Pramet A720.39 (MID 5971128) is a micro drill with a 0.39mm (0.0154") cutting diameter, 1mm shank, and 3.6mm flute length. Made from Cobalt High Speed Steel (HSS-E) with a 118° point angle and standard spiral flute. Suitable for steel and cast iron. DIN 1899 stub length design.
MODEL A720.39
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$13.26 Each
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California Prop 65 warningBasic Standard
DIN 1899
Connection diameter - millimeter (DCON MS)
1
Cutting diameter - inch (DC)
0.0154
Cutting diameter - millimeter (DC)
0.39
EDP number
45077
Length chip flute - millimeter (LCF)
3.6
Material
HSS-E
Material application
K - Cast iron, P - Steel and cast steel
MID number
5971128
Ordering code ANSI
A720.39
Point Angle (SIG)
118
Spiral form
Standard Spiral
Usable length (ULDR)
2.5
Dormer’s A720 is a metric micro drill, supplied in very small diameters ranging from 0.15 mm to 1.40 mm.
To make tool holding easier, all drills have either a 1.00 mm or 1.50 mm shank diameter.
The drills all have a 118 degree 4-facet point which is a great aid to self-centering and reduces the amount of force needed to drill a hole.
The drills have a bright finish to prevent workpiece material from sticking to the cutting edge and are made from High Speed cobalt so are also suitable for drilling abrasive materials
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