https://www.mccoys.com/shop/p/8358525-052303-32/irwin-unibit-15103zr-step-drill-bit-14-to-34-in-dia-2-12-in-oal-1-flute-38-in-dia-shank-hex-shank
Unibit 15103ZR Step Drill Bit, 1/4 to 3/4 in Dia, 2-1/2 in OAL, 1-Flute, 3/8 in Dia Shank, Hex Shank
Sku: 8358525-052303-32
$50.74 / Card
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Self-starting bit features single flute cutting edge for greater control through steps. Three flatted shanks prevent slipping in drill chuck. SpeedPoint tip penetrates faster and prevents walking in applications such as drilling holes into stainless steel, copper, brass, aluminum, plastic, laminates and other thin materials up to 1/8 in thick.
Diameter
1/4 to 3/4
Number of Flutes
1
Flute Length
1/8
Shank Type
Hex
Shank Diameter
3/8
Point Type
Self-Starting
Cutting Edge Material
HSS
Material
HSS
Finish
Titanium Nitride-Coated
Overall Length
2-1/2
Applicable Materials
Aluminum, Brass, Copper, Ferrous, Non-Ferrous Materials, Plastic, Stainless Steel, Wood