Aluminium Holder Strip Brush With Mounting Holes is pre-drilled holes on holder. The mounting hole shapes can be round, obround, square, rectangular slots or any other custom made shapes. Besides aluminium holder, steel, stainless steel, brass and monel are all available. Every order, we can also send the accordingly screws together to help installation. On receipt of two important parameter, the hole size/shape and hole position, then we could custom make this kind strip brush for you.