DeHoff Drilling Machine used for Helicopter Manufacturing
August 1, 2026
The DeHoff 25108 is a BTA drilling machine used to manufacture helicopter tail rotor drive shafts. The shaft begins as a solid piece of high-strength alloy steel and is BTA drilled in a single pass using the DeHoff machine. This results in a significant weight reduction for the finished drive shaft.
The DeHoff 25108 has a BTA drilling diameter capacity of 2.5" (63.5 mm) and a maximum drilling depth of 108" (2,743 mm). DeHoff BTA drilling machines are designed and manufactured by Kays Engineering in Marshall, MO.
For more information contact:
Kays Engineering, Inc.
900 Industrial Dr.
Marshall, MO 65340
660-886-9929
info@kays-dehoff.com
www.kays-dehoff.com
IMTS South Building, Level 3
Booth 339463
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