Unibor
Unibor 02X3HTI 1-1.5/8 in cone drill 3-flat shank Bluemax coated
Covers 1 to 1.5 inch holes with a Bluemax-coated cone drill on a 3-flat shank
- Covers 1 in to 1.5/8 in hole sizes for versatile drilling
- Three-flat shank prevents slipping in the chuck for secure grip
- Bluemax coating reduces friction and heat for longer tool life
- Cone design creates multiple diameters with a single bit for efficiency
- Unibor branding indicates professional-grade construction for demanding tasks
Cone drill range and shank
The Unibor 02X3HTI is a cone drill covering a 1 to 1.5/8 inch diameter range. Its three-flat shank locks securely into standard drill chucks to prevent spin-out under load. The Bluemax coating reduces friction and heat during cutting. This tool suits metalworkers who need multiple hole sizes from one bit.
Replaces step drills and single-size bits
It replaces a set of individual twist drills or a step drill when you regularly cut holes across the stated range. The jump is worth it if you value fewer bit changes and a smoother finish on thin sheet material. For very thick plate or high-volume production runs, dedicated carbide tooling remains the better choice.
Check chuck capacity and workpiece thickness
Verify that your drill chuck opens wide enough to accept the largest shank section. Confirm the material thickness does not exceed the flute length available on the cone. Ensure you have cutting fluid or lubricant ready for stainless or hardened steels.
Highlights
- Covers 1 in to 1.5/8 in hole sizes for versatile drilling
- Three-flat shank prevents slipping in the chuck for secure grip
- Bluemax coating reduces friction and heat for longer tool life
- Cone design creates multiple diameters with a single bit for efficiency
- Unibor branding indicates professional-grade construction for demanding tasks
Specifications
| Brand | UNIBOR |
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Questions about this item
What chuck size accepts the 3-flat shank on the Unibor 02X3HTI cone drill?
The three-flat shank is designed for a standard 1/2 in drill chuck; tighten each flat evenly so the drill runs true.
Which step is often missed when installing the Unibor 02X3HTI in a hand drill?
Users frequently forget to seat all three flats fully in the chuck jaws before tightening, causing the bit to wobble and cut oversize holes.
When should the Bluemax coating on the Unibor 02X3HTI be refreshed?
Re-coat or replace the drill when the gold-coloured Bluemax layer wears through to the base steel, as cutting performance drops and heat builds up.
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