Armeg 4pc Twister Impact Masonry & Screwdriver Bit SetBelt Loop Bit Holders are perfect for convenience, featuring a quick click and release system that securely holds your favourite Armeg Hex shank or Twister branded product, while the strong carabiner clip fastens onto a belt or bag loop to keep those most used bits within reach. Additionally, the quick bit release mechanism automatically releases the bit when the collar is drawn back, allowing for easy one handed operation. Armeg 5. 5mm x 85mm Twister