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Dormer Pramet A720.5 (MID 5971139) stub length micro drill, 0.50mm (0.0197") diameter, 118° point angle, standard spiral flute geometry, 4mm flute length. Cobalt High Speed Steel (HSS-E) per DIN 1899. Suitable for steel and cast iron workpieces.
MODEL 5971139
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California Prop 65 warningApplicationAngleIcon_DICT_SEL
Drill point 118°
Basic Standard
DIN 1899
Coating
Bright
Connection diameter - inch (DCON MS)
0.0394
Connection diameter - millimeter (DCON MS)
1
Cutting diameter - inch (DC)
0.0197
Cutting diameter - millimeter (DC)
0.5
Cutting diameter tolerance class (TCDC)
+0/-0, 004mm
EDP number
45114
Hand (Cutting direction)
Right
Length chip flute - inch (LCF)
0.1575
Length chip flute - millimeter (LCF)
4
Material
HSS-E
Material application
K - Cast iron, P - Steel and cast steel
MID number
5971139
Ordering code ANSI
A720.5
Overall length - inch (OAL)
0.9843
Overall length - millimeter (OAL)
25
Point Angle (SIG)
118
Shank
Cylindrical shank
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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