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407A08 Reduced-Shank Drill Bits

$142.61

Bulk orders will be discounted, please contact us.

These drill bits have three flats on their shank that help prevent the bits from slipping in the drill chuck when drilling at high speeds or under heavy loads. The bits are made from high-speed steel and provide more flexibility and absorb more shock and vibration than cobalt drill bits. Also known as Silver and Deming drill bits, these reduced-shank drill bits have a 1/2" shank and a drill diameter that is greater than 1/2". They can create larger holes than standard drill bits that have a 1/2" shank.

Product Number: 407A08

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  • Description
Mfr Model 52486
Measurement System Fractional Inch
Drill Bit Size 1-11/32 in
Decimal Equivalent 1.3438
Maximum Drilling Depth 5-3/8 in
Overall Length 6 in
Shank Type Machining Straight with Three Flats
Finish Machining Black Oxide
Material Machining High Speed Steel
Primary Material Application Cast Iron; Steel; Wood
UNSPSC 27112801
Country of Origin USA (subject to change)
Cutting Direction Right Hand
Flute Length 3-1/8 in
Flute Type Spiral
Standards Not Rated
Drill Bit Point Angle 118 °
Drill Bit Point Type Conventional Point
Number of Flutes 2
Spiral Direction Right Hand
Helix Angle 28°
Depth Dia Ratio 4xD
Shank Dia 1/2 in
Primary Material Application ISO Code K; O; P
Material Grade Machining General Purpose
Shank Length 2-1/4 in
Coolant Fed Non-Coolant Through
Drill Diameter Tolerance +0.0000 in /-0.0015 in
Secondary Material Application Non Ferrous Material
Secondary Material Application ISO Code M
Web Construction The Web Joins the Lands, Which Are the Outer Portion of the Drill Body Between Two Adjacent Flutes
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