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34D734 Step Drill Bits

$97.70

Bulk orders will be discounted, please contact us.

Step drill bit sets contain multiple bits in different sizes for creating holes in a range of sizes. These cone-shaped bits have steps of increasing diameter marked along their cutting head. As each bit is pushed into a piece of sheet metal or other thin material, each step on the bit widens the hole. The bits also have a self-starting split point that prevents the bits from moving, or walking, when starting to drill, which eliminates the need for using a center drill to create a starter hole before drilling.

Product Number: 34D734

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  • Description
Mfr Model DWA1790IR
Measurement System Fractional Inch
Decimal Equivalent 0.125; 0.1563; 0.1875; 0.2188; 0.25; 0.2813; 0.3125; 0.3438; 0.375; 0.4063; 0.4375; 0.4688; 0.5; 0.5625; 0.625; 0.6875; 0.75; 0.875
Maximum Drilling Depth 1 in
Overall Length 3-3/8 in; 3-1/2 in
Shank Diameter 1/4 in
Shank Type Machining Hex
Impact Rated Yes
Finish Machining Titanium Nitride Coating
Material Machining High Speed Steel
Primary Material Application Steel
Sub Brand Unibit
UNSPSC 27112801
Country of Origin China (subject to change)
Series UNIBIT
Shank Hex Size 1/4 in
Shank Length 15/16 in
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