BTE Tools Standard Corner Flusher 4" is ideal for base coat. The precision hand milling makes this absolutely the smoothest running flusher you have ever used! Solid billet machined core provides utmost precision and body made of surgical stainless steel stays true even with extensive use. Genuine Stainless Steel runners will not rust or corrode like some competitors, allowing for an extremely clean finish. BTE 4" standard corner flusher features superior locking clip to keep flusher attached and will work with any brand flusher handle.