These sets contain multiple screw-machine-length drill bits in different sizes. They ensure users have a range of bits on hand for maintenance and repair tasks. Screw-machine-length drill bits are shorter than jobber-length and maintenance-length drill bits. Sometimes called stub-length drill bits, they provide more strength and rigidity and can drill straighter holes than longer drill bits. Their short length also allows them to access tight spaces where longer drill bits cannot fit.
This general purpose screw machine drill bit set is made of high speed steel and has a 1/16 inch to ½ inch diameter shank. It includes a metal drill index, is designed for use with all materials, and meets ASME standards. This screw machine length drill bit set has a bright (uncoated) finish, and has fractional inch measurements. It is non-coolant through. Plus it has spiral flutes, a straight shank, and 118 Degrees conventional point.
This general purpose screw machine drill bit set is made of high speed steel and has a 1/16 inch to ½ inch diameter shank. It includes a metal drill index, is designed for use with all materials, and meets ASME standards. This screw machine length drill bit set has a bright (uncoated) finish, and has fractional inch measurements. It is non-coolant through. Plus it has spiral flutes, a straight shank, and 118 Degrees conventional point.
This heavy-duty screw machine drill bit set is made of high speed steel and has a 1/16 inch to ½ inch diameter shank. It includes a metal drill index, is designed for use with all materials, and meets the standards for NAS907 Type C. This screw machine length drill bit set has a bright (uncoated) finish, and has fractional inch measurements. It is non-coolant through. Plus it has spiral flutes, a straight shank, and a 135 Degrees split point.
This heavy-duty screw machine drill bit set is made of high speed steel and has a 1/16 inch to ½ inch diameter shank. It includes a metal drill index, is designed for use with all materials, and meets the standards for NAS907 Type C. This screw machine length drill bit set has a bright (uncoated) finish, and has fractional inch measurements. It is non-coolant through. Plus it has spiral flutes, a straight shank, and a 135 Degrees split point.
This M42 screw machine drill bit set is made of cobalt and high speed steel and has a 1/16 inch to ½ inch diameter shank. It includes a metal drill index and is for use with all materials. This screw machine length drill bit set has a steam oxide finish, and has fractional inch measurements. It is non-coolant through. Plus it has zero spiral flutes, a straight shank, and a 135 Degrees split point.
This M42 screw machine drill bit set is made of cobalt and high speed steel and has a 1/16 inch to ½ inch diameter shank. It includes a metal drill index and is for use with all materials. This screw machine length drill bit set has a steam oxide finish, and has fractional inch measurements. It is non-coolant through. Plus it has zero spiral flutes, a straight shank, and a 135 Degrees split point.
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