Dynabrade 57405 Inline Finishing Sander 0.3 Hp

Product Description

The DYNABRADE 57405 is a pneumatic inline finishing sander rated at 0.3 horsepower, designed for fine sanding and surface finishing work in professional trade and industrial settings. It draws 18 SCFM of air and operates at an air pressure of 90 psi (6.21 bar), requiring a reliable compressed air supply for consistent performance. At 7 inches in overall length and 3.2 pounds, the tool is compact enough for extended use in tight spaces or overhead applications. It accepts a 1/4 NPT inlet fitting, which is standard on most shop air lines. Licensed tradespeople, finishing contractors, and fabricators are the primary users.

The 57405 is suited for inline finishing tasks on flat and contoured surfaces in both shop and field environments. Its compact form factor makes it practical for cabinetry work, metal fabrication, auto body finishing, and general surface prep where a straight, in-line sanding motion is preferred over orbital or random-orbit patterns. The 1/4 NPT air inlet allows direct connection to standard shop air hoses and quick-connect fittings without adapters in most setups.

Key Features

• 0.3 HP pneumatic motor delivers consistent power for finishing and light material removal
• 18 SCFM air consumption rating — size your compressor accordingly for sustained operation
• 6.21 bar (90 psi) operating air pressure, compatible with standard shop air systems
• 7 inches overall length for control in confined or detailed work areas
• 1/4 NPT air inlet fits common shop air line connections
• Lightweight at 3.2 pounds, reducing fatigue during extended use

Compatibility

Designed as an OEM-style pneumatic inline finishing sander intended for use with compressed air systems supplying adequate CFM and pressure at the tool inlet.

Installation Notes

Installation and operation should be performed by qualified personnel familiar with pneumatic tool safety and applicable workplace safety codes. Before connecting or disconnecting the tool, shut off the air supply and bleed the line to release residual pressure. Verify that the air supply meets the minimum CFM and pressure requirements to avoid underperformance or tool damage. Use thread sealant on the 1/4 NPT inlet connection and confirm all fittings are secure before operating.