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Precision Twist Drill R10CO3/8, part number 5998188, 3/8" (0.375") HSS-E cobalt heavy duty jobber drill with bronze finish and 135° point. NAS907 standard, right-hand cut, cylindrical shank. 3-5/8" flute length, 5" overall length. For aerospace and demanding applications in steel, stainless steel, cast iron, and high-temperature alloys.
MODEL 5998188
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$14.57 Each
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Drill point 135°
Basic Standard
NAS907
Coating
Bronze
Connection (shank) description
Cylindrical shank
Cutting diameter - fractional inch (DC)
3/8"
Cutting diameter - inch (DC)
0.375
Cutting diameter - millimeter (DC)
9.53
Drill Length
Jobber
Hand (Cutting direction)
Right
Length chip flute - fractional inch (LCF)
3.5/8
Length chip flute - inch (LCF)
3.625
Material
HSS-E
Overall length - fractional inch (OAL)
5
Overall length - millimeter (OAL)
127
Point Angle (SIG)
135
Spiral form
Standard Spiral
Surface treatement
Steam Tempered
Usable length (ULDR)
4
The 135 degree split point is an aid to self-centering and reduces the amount of force needed to drill the hole, whilst the bronze oxide finish prevents workpiece material from sticking to the surfaces of the drill so you get clean, accurate holes.
R10CO jobber drills have a heavy duty design, recommended for use in difficult materials and applications.
| Brand | Precision Twist Drill |
| Model | 6000219 |
| Brand | LYNX |
| Model | LNX CA550 O/L |
