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Precision Twist Drill 4ASM6.4 (046640) 6.4 mm (0.252") HSS jobber drill with 135° point, DIN 1897 standard, standard spiral, right-hand cut. 31 mm flute length, 2.5" usable length. Suitable for general-purpose drilling in steel, cast iron, and non-ferrous metals.
MODEL 4ASM6.4
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Basic Standard
DIN 1897
Cutting diameter - inch (DC)
0.252
Cutting diameter - millimeter (DC)
6.4
Length chip flute - millimeter (LCF)
31
Material
HSS
Point Angle (SIG)
135
Spiral form
Standard Spiral
Usable length (ULDR)
2.5
4ASM screw machine length drill bits are available in sizes from 1 mm to 12.5 mm and are manufactured from premium High Speed steel so can be used for drilling a wide range of materials including aluminum, steels and stainless steel.
The steam oxide finish prevents workpiece material from sticking to the cutting surfaces of the tool so you get a clean and accurate result.
The 135 degree split point is a great help with self-centering and also means less push force is required.
4ASM drill bits are very versatile, being suitable for many different applications, either machine or hand held.
Drill bits
Verified · SKU 6087237Work well very sharp Read more
