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The 8255-A21-1 1-1/4” Stroke Ingersoll Rand Par-A-Matic Valve-In-Head Self-Feed Air Drill is a compact, high-precision production drill engineered to automate a wide range of secondary machining applications with speed, consistency, and economy. Designed for versatility, the 8255-A21-1 1-1/4” Stroke Ingersoll Rand Par-A-Matic Valve-In-Head Self-Feed Air Drill leverages compressed air for both spindle rotation and feed/control functions, allowing manufacturers to achieve dependable output with minimal system complexity. Its rotary-vane air motor delivers an exceptional power-to-size ratio, helping reduce overall tool weight and footprint for flexible integration into automated machining setups.

As part of the proven ARO Par-A-Matic series, the 8255-A21-1 1-1/4” Stroke Ingersoll Rand Par-A-Matic Valve-In-Head Self-Feed Air Drill is built for straightforward installation and quick deployment, requiring only simple pneumatic circuitry. It can operate as a stand-alone automatic production tool or be paired with other pneumatic or electric components within larger manufacturing systems. The unit?s built-in four-way valve enables both manual and remote operation, giving integrators and operators the control flexibility needed in dynamic production environments.

The 8255-A21-1 1-1/4” Stroke Ingersoll Rand Par-A-Matic Valve-In-Head Self-Feed Air Drill incorporates a double-acting air piston that provides smooth, balanced forward and retract strokes, while needle valve controls allow precise adjustment of stroke characteristics. An integrated adjustment screw offers infinite stroke-length settings up to the full rated capability, enabling fine-tuned operation across a wide range of materials and hole specifications. Ball bearing spindle support ensures long service life and consistent precision, even under continuous production loads. A muffled exhaust system further contributes to a quieter, more comfortable work environment.

Engineered for durability, simplicity, and high repeatability, the 8255-A21-1 1-1/4” Stroke Ingersoll Rand Par-A-Matic Valve-In-Head Self-Feed Air Drill is an excellent choice for automated drilling operations requiring compact design, adjustable performance, and reliable long-term productivity.