M40CO5/16 Stub Drill
Item #:
31RCMC
Product Info
39960
Stub length drill with straight shank, diameter 0.3125” (5/16) with an overall length of 2.13/16” and flute length of 1.5/8” according to ANSI standard with 135° split point, cobalt based HSS-E with bronze finish for 2.5xD drilling without pecking in steel, stainless steel, cast iron and super-alloy
Stub Drill
Item Specifications
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Drill point 135°
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ANSI
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7
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74
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7
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Bronze
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Brazil
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5/16
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0.3125
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7.94
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.3125in
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2
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22
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Right
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Primary use
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2 13/16in
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1.5/8
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1 5/8in
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Primary use
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Cobalt
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K - Cast Iron(castings of iron and carbon alloys with >
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2% carbon content), M - Stainless steel(corrosion resistant steels with = 11% chromium content), P - Steel and cast steel(steels with alloy content = 10% and a hardness of <
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45HRC), S - High-temperature alloys(superalloys with high temperature stength and corrosion resistant surpassing that of stainless steel)
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HSS-E
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Possible use
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71.44
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2.13/16
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2.8125
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Primary use
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135
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Inch
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Stub Drill
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Cylindrical shank
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5/16in
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Inch
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2.5