Ebay offers Gardena 33220 Combisystem Straight Blade Metal Hand Hoe with 3 Teeth Head Only for $16.76 (reg $45.99). Eligible for free super saver shipping. 

Product Description:
The Gardena 33220 Combisystem Straight Blade Hand Hoe is ideally suited for plant-sparing garden care in close-set rows and beds. Whether hoeing, weeding, aerating, ridging or levelling – everything is possible with the straight blade on one side and three teeth on the other. The Garden Hoe is suitable for all combisystem handles. The rake has a straight blade, three teeth and a working width is 6.5 cm.

• Straight blade hoe with three teeth
• Working width - 6.5 cm
• Made of durable metal
• For use in hand or on combisystem pole
• Suitable for all combisystem handles
• HGGARDENA33220