Fits Your Sharp Pebble Sharpener: Replacement bits for the Sharp Pebble Cordless Hedge Trimmer Sharpener Kit. When a bit wears down, pop in a fresh one and keep your gas or electric hedge trimmer blades sharp. 8 Bits in One Set: Spares for the whole season and beyond. Switch to a new bit as soon as one wears, so a dull bit never holds up your weekend yard work or a client job. 7/32" (5.5mm) Bits: The cylindrical grinding head is sized to work along each hedge trimmer tooth and bring back a clean, sharp cutting edge. For Homeowners and Landscapers: Sharp blades cut branches cleanly instead of tearing them, for neater hedges and less strain on your trimmer, whether you trim twice a year or every day. Clear Storage Case Included: Each of the 8 bits snaps into its own slot in a clear plastic case, so they stay protected, easy to find and easy to toss in a toolbox, truck or garden shed.