Store Lee Valley Mirka 3″ × 4″ Pneumatic Sander With Self-Generating Vacuum, 3mm Orbit

With a tight 3mm orbital pattern that leaves smooth, even surfaces, combined with a compact 3″ × 4″ platen that has bevelled sides to permit precise sanding right up to an edge, this is a superb sander for finishing work. Effectively dust-free in use, it has an onboard dust-collection system that lets you work independently of a separate vacuum.

At 4″ tall and weighing just 0.7kg (1 lb 9 oz) with a comfortable, ergonomic design, it is a highly maneuverable tool, well suited for overhead or vertical tasks and for working into tight spots.

Air passing through the pneumatic motor produces a Venturi effect, generating a powerful suction. A pattern of holes in the platen distributes suction across the entire sanding pad, extracting dust right at the source while you work. Dust is expelled through a 70″ hose into a disposable paper collection bag held within an 8 3/4″ × 18″ protective nylon outer bag (replacement collection bags available separately), greatly reducing clean-up time.

The sander connects to standard 3/8″ diameter air hoses, requiring 16 cfm of air at pressure up to 90 psi. It has a noise rating of 81 dB, low vibration output (3.5m/s²), and a 70″ outlet hose that directs exhaust air away from the user.

The upper control paddle lets you adjust speed on the fly without interrupting your work – pressing the paddle increases the speed up to 10,000 rpm, a lighter squeeze slows the motor, and releasing it stops the tool within seconds.

Compatible with a range of Mirka pads, it lets you select from a full line of abrasive types and grits to match the application. It comes with a platen protector to prolong the life of the platen (replacement platen protectors available separately).

A well-designed high-precision sander. Backed by a 2-year warranty.