Unibor
Unibor 27128 7/8 x 1.3/8 Carbide Cutter Pilot 3/4 Universal Shank pneumatic accessory
A carbide cutter and pilot with a 3/4 universal shank for power and pneumatic tools
- 7/8 x 1.3/8 carbide cutter handles demanding cuts
- 3/4 universal shank fits standard pneumatic tools
- Pilot included guides accurate hole placement
- Carbide construction resists wear in tough materials
- New Unibor 27128 ready for workshop use
7/8 x 1.3/8 Carbide Cutter Pilot
The Unibor 27128 carbide cutter and pilot features a 3/4 universal shank for broad compatibility with magnetic drills and pneumatic equipment. It is designed for metal fabrication shops and maintenance teams that need reliable hole cutting in structural steel and plate. The tool suits operators who value a single cutter-pilot assembly over separate components. Buyers who need a different diameter or a non-universal shank should look elsewhere.
Thermals noise and power draw
As a consumable cutting accessory the Unibor 27128 generates heat only at the cutting interface during normal drilling cycles. Noise levels depend on the host drill motor and workpiece clamping rather than the cutter itself. Power draw is determined entirely by the driving machine and the feed pressure applied by the operator. No independent thermal or acoustic ratings exist for this accessory.
Behaviour under sustained load
Under continuous cutting the carbide teeth maintain edge integrity longer than high-speed steel equivalents in similar materials. The pilot keeps the cutter centred, reducing wander that can increase load on the motor. Extended use will eventually dull the cutting edges, requiring replacement rather than resharpening in most workshop environments. Operators should monitor cut quality and replace the assembly when feed force rises noticeably.
Highlights
- 7/8 x 1.3/8 carbide cutter handles demanding cuts
- 3/4 universal shank fits standard pneumatic tools
- Pilot included guides accurate hole placement
- Carbide construction resists wear in tough materials
- New Unibor 27128 ready for workshop use
Specifications
| Brand | UNIBOR |
|---|
Questions about this item
How do I fit the 3/4 universal shank into my pneumatic tool, and what step is often missed?
Insert the shank fully into the tool's chuck and tighten the collar until it locks; the step often missed is verifying the collar clicks into the detent groove before starting the tool.
Which part of the 7/8 x 1.3/8 carbide cutter will wear first and need replacement?
The carbide cutting edges dull with use; when they no longer produce clean holes the cutter must be replaced as it cannot be resharpened.
What limit appears first during continuous cutting with this pilot and cutter?
Heat builds in the carbide tips during sustained cuts, reducing edge life and requiring cooling pauses to avoid premature wear.
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