3 DIFFERENT SIZE WIRE BRUSHES: This set includes 12 wire end brushes which offer 3 different sizes (0.8inch, 1inch, 1.2inch) with 4 brushes per size. These wire brush drill attachments can help you tackle rusted surfaces, narrow corners, and intricate edges. UPGRADED HEX SHANK FOR ENHANCED STABILITY: The hex shank provides a tighter grip that is more stable and safe than traditional round shanks. It is not easy to loosen or slip at high-speed working. The 1/4-inch hex shank can cover a wide range of drills including standard power drills and pneumatic air drills, etc. STRONG & : These wire brushes are crafted from premium-grade carbon steel and have excellent rugged connections so that the wire not be lost and bent during intense use. The bottom of the wire wheel brush is not in hallow and can withstand the high speed of the 4500RMP which is not easy to break and deform. WIDE APPLICATION: The wire brush for drill is perfect for removing paint and rust, deburring edges, edge blending, deep cleaning, and more., Weight: 1.33159206248 pounds, Manufacturer: puhae