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4CPA1 Cobalt Screw-Machine Length Drill Bits

$1.97

Bulk orders will be discounted, please contact us.

These drill bits have a straw/bronze finish that improves their wear resistance. Spiral-flute drill bits evacuate chips as the bits drill into a workpiece.

Product Number: 4CPA1

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  • Description
Mfr Model 50906
Measurement System Wire
Drill Bit Size #51
Decimal Equivalent 0.0670
Overall Length 1-11/16 in
Shank Diameter 1/16 in
Shank Type Machining Straight
Finish Machining Straw/Bronze
Material Machining Cobalt
Primary Material Application Cast Iron; Steel; Tool and Die Steel
UNSPSC 27112801
Country of Origin USA (subject to change)
Cutting Direction Right Hand
Flute Length 11/16 in
Flute Type Spiral
Standards Not Rated
Drill Bit Point Angle 135 °
Drill Bit Point Type Split Point
Number of Flutes 2
Spiral Direction Right Hand
Helix Angle 28 °
Depth Dia Ratio 4xD
Primary Material Application ISO Code K; P
Material Grade Machining M42
Drill Length Class Screw Machine Length
Sheeter Drill No
Drill Point Length 0.0139 in
Shank Length 1 in
Coolant Fed Non-Coolant Through
Drill Diameter Tolerance +0.0000 in /-0.0005 in
Secondary Material Application Aluminum; Cast Iron; Hardened Steel; High Carbon Steel; Stainless Steel
Secondary Material Application ISO Code H; K; M; N; P

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