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16R628 Spotting Drills

$24.05

Bulk orders will be discounted, please contact us.

Solid carbide spotting drills are harder than cobalt steel and high-speed steel spotting drills and provide good wear resistance when drilling into the toughest materials. Sometimes called hole-starting drill bits or spot drills, these short drills make starter holes that help prevent drill bits from walking (or moving) when the hole is made deeper with a drill bit.

Product Number: 16R628

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  • Description
Mfr Model SPD-312-082
Measurement System Fractional Inch
Drill Bit Size 5/16 in
Decimal Equivalent 0.3125
Overall Length 2-1/2 in
Shank Type Machining Straight
Finish Machining Bright (Uncoated)
Material Machining Carbide
Primary Material Application Alloy Steel; Gray Cast Iron; Low Carbon Steel; Nodular Cast Iron
UNSPSC 27112801
Country of Origin USA (subject to change)
Flute Length 3/4 in
Flute Type Spiral
Drill Bit Point Angle 82 °
Number of Flutes 2
Spiral Direction Right Hand
Primary Material Application ISO Code K; N1; N3; N4; P
Secondary Material Application Aluminum; Non-Ferrous Materials
Secondary Material Application ISO Code M; S
Body Dia 5/16 in

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