Unibor
Unibor Impact Pro Step Drill 1/4in-3/4in Spiral Flute
A spiral-flute step drill covers hole sizes from 1/4 inch to 3/4 inch for impact-driver use
- Drills multiple hole sizes with a single 1/4in-3/4in step drill
- Spiral flute design clears chips for smoother cutting
- Impact-rated shank handles high-torque drivers without slipping
- Unibor professional-grade steel resists wear on tough materials
- One tool replaces six individual drill bits for efficiency
Impact Pro Step Drill Range
The Unibor Impact Pro Step Drill covers hole sizes from 1/4 inch to 3/4 inch in a single bit. Its spiral-flute geometry is engineered to cut cleanly through sheet metal and similar materials when driven by an impact driver. The tool arrives new and ready for immediate workshop use.
Suited For Sheet Metal Work
This step drill suits technicians and fabricators who need fast, accurate holes in thin-gauge metal without changing bits. It is not intended for heavy drilling in thick plate, wood or masonry, and buyers who require larger diameters or dedicated wood-cutting flutes should look at other tooling.
Check Impact Driver Compatibility
Verify that your impact driver accepts a 1/4-inch hex shank before ordering. Confirm the material thickness falls within the drill's effective range and that the workpiece can be securely clamped for safe operation.
Highlights
- Drills multiple hole sizes with a single 1/4in-3/4in step drill
- Spiral flute design clears chips for smoother cutting
- Impact-rated shank handles high-torque drivers without slipping
- Unibor professional-grade steel resists wear on tough materials
- One tool replaces six individual drill bits for efficiency
Specifications
| Brand | UNIBOR |
|---|
Questions about this item
What impact driver shank size fits the Unibor Impact Pro Step Drill?
The drill uses a standard 1/4-inch hex shank compatible with most impact drivers and drill chucks.
Can the spiral-flute step drill cut clean holes in thin sheet metal without snagging?
The spiral flute design reduces grabbing and chatter, allowing smoother cutting in thin materials compared to straight-flute drills.
How do I verify each hole diameter after drilling with the step drill?
Each step is marked with its diameter; measure the finished hole with a caliper or gauge to confirm it matches the intended step size.
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