Ega Master SQUARE HEAD CLAW HAMMER 28 MM - - Amazon.com
Kings County Tools Set of Four Long-Handle Small Hammers | Ideal for Craft and Hobby Projects | Square Head Tack, Round Face Solid Brass, Mini-Ball Peen and Tiny Detail Hammer - Ball
Amazon.com: Onwon L-shape Piano Tuner Spanner Professional Wrench Square Shape Tip Tuning Hammer Tuner Spanner Tool: Musical Instruments