The phrase "a special tool for" is correct and usable in written English.
It can be used when describing a specific tool designed for a particular purpose or function.
Example: "This is a special tool for measuring the temperature of liquids accurately."
Alternatives: "a unique instrument for" or "a specific device for".
I own a special tool for twisting recalcitrant lids.
Third, fasten TVs, lamps and wall hangings with screws that require a special tool for removal.
Noor Institute, she said, developed a special tool for helping teach Braille, a plastic box with buttons to push to make different letters and numbers.
(Have you looked at the junk in one of those airline mail-order catalogs recently? Does the world really need a special tool for cutting bananas?) No wonder we don't want to face the cause of our problems: it's us!
Validation of the TSK-OWA, performed in the Northeastern University vehicle drive simulator, has shown that the proposed method is promising to be a general tool for human cognitive state inferring and a special tool for the driver fatigue detection.
The Sector Sub-assembly Tool is a special tool for assembly of ITER Tokamak and is used to sub-assemble the 40° Tokamak sector which consists of vacuum vessel sector, vacuum vessel thermal shield sector and two toroidal field coils.
Or you could ask your dentist or orthodontist for a special tool used for cleaning your tongue.
Mr. Feller, a stocky Brooklyn native with a close-cropped beard, has a special tool kit for these outings.
Until about 1900 all ivory carvers used much the same tools: an ax, adz, or chisel for removing the outer bark, or rind, from the tusk; a bucksaw or bow saw for cutting the trunk of the tusk into sections; a special tool called a float for paring the surface; and hand chisels, fretsaws, and gauges for actually carving the piece.
If you actually build one of these you will have do a final tune of the mirrors with power applied, use a special tool which is insulated for the voltages we are talking about and only if you have insulated mirror mounts.
Chip the ice with an axe or hatchet to create a small hole in the ice, or use an ice auger (a special tool which drills into the ice), for measuring the thickness through.
