Makita 751622-A 5-1/2-Inch Clay Spade For digging in clay, shale, hard packed gravel, loose concrete and dirt Manufactured using state-of-the-art technology, CNC machined and forged from industrial-grade alloy material for increased durability Shot peened for added strength and increased surface hardness Clear-coat helps prevent corrosion, Makita 5-1/2 x 20 Clay Spade, With a 1-1/8 Hex Shank (751622-A), Fits Breaker Hammers that accept 1-1/8 hex demolition steel, Fits Makita HM1810 and HM1812 among others