Irwin® UNIBIT® 10233 Self-Starting Step Drill Bit, 1/4 in Dia Min Hole, 3/4 in Dia Max Hole, 9 Steps, High Speed Steel, 3 Hole Sizes, 3/8 in Shank
Irwin® Unibit® step drill bits are ideal for drilling holes in just about any type of thin material. General purpose high speed steel Unibit® step drill bits are perfect for use in mild steel, copper, brass, aluminum, plexiglass, wood, and laminate. Our titanium nitride coated (TiN) bits resist heat and friction, which extends the life of the cutting edge six times longer than standard step drills. And, our cobalt step drill bits are engineered with m35 cobalt steel for maximum life when drilling in the toughest steel, including stainless steel. Most Unibit® step drills are designed with a SpeedPoint® tip that guarantees fast starts. Theyre manufactured with a single flute cutting edge that drills multiple sizes of true, round holes with precise step control. Plus, the hole sizes are permanently laser etched on the inside of the flute, so they can be easily identified throughout the life of the bit.
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BrandIrwin®
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UPC385481010336
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Manufacturer Part Number10233
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CountryUSA
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MaterialHigh Speed Steel
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Throat Depth2-3/4 in
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ColorBlue
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Mounting TypeBolted-Down
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Handle MaterialSteel
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Handle TypeFused
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Base TypeStationary
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Jaw MaterialCast Iron
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Jaw Opening4-3/4 in
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Jaw TypeReplaceable
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Jaw Width4 in
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FinishBright
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Point TypeSpeedPoint®
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Maximum Hole Diameter3/4 in
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Minimum Hole Diameter1/4 in
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TypeSelf-Starting
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Applicable MaterialsAluminum/Brass/Copper/Laminates/Plastic/Stainless Steel
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Number of Flutes1
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Shank Size3/8 in
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Cutting Edge MaterialHSS
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Shank TypeHex
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Number of Hole Sizes3
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Number of Steps9
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Drill Diameter Measurement SystemImperial
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Step Depth1/16 in
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Letter/Wire Size#3
- Single flute cutting edge for greater control through steps
- Hex shank prevents slipping in drill chuck
- New SpeedPoint® tip penetrates faster than previous Unibits and prevents walking
- Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates
- Geometry of single flute cutting edge drills true, round holes and provides maximum step control
- Laser etched sizes inside flute for easy and permanent hole size identification
- Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates
- Lip on back body guides filings and fragments away from the slide
- For machining straight surfaces
- <30 lb typical workpiece
| Competitor Name | Competitor Part Number |
|---|---|
| Fastenal | 03854810103 |
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UNSPSC23241640
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Package DescriptionEACH
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WarrantyLifetime
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Catalog
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Irwin® UNIBIT® 10233 Self-Starting Step Drill Bit, 1/4 in Dia Min Hole, 3/4 in Dia Max Hole, 9 Steps, High Speed Steel, 3 Hole Sizes, 3/8 in Shank
Irwin® Unibit® step drill bits are ideal for drilling holes in just about any type of thin material. General purpose high speed steel Unibit® step drill bits are perfect for use in mild steel, copper, brass, aluminum, plexiglass, wood, and laminate. Our titanium nitride coated (TiN) bits resist heat and friction, which extends the life of the cutting edge six times longer than standard step drills. And, our cobalt step drill bits are engineered with m35 cobalt steel for maximum life when drilling in the toughest steel, including stainless steel. Most Unibit® step drills are designed with a SpeedPoint® tip that guarantees fast starts. Theyre manufactured with a single flute cutting edge that drills multiple sizes of true, round holes with precise step control. Plus, the hole sizes are permanently laser etched on the inside of the flute, so they can be easily identified throughout the life of the bit.
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