My LB75B came with some nice single and double tiger-tooth teeth. In the first pictures below, you can see the condition of the teeth when delivered. I've put about 50 hours of digging in caliche and those teeth have lost their points as shown in pictures 3 and 4. Picture 5 is the relief trench I was digging in the caliche so I could break off big chunks like the one shown in picture 6. It worked really well and made the rest of the digging go quickly. Those big chunks easily break up into small football sized pieces when crushed with the bucket lip or backhoe teeth.
What I'm wondering is if anyone is as surprised as I am to see the kind of wear I am getting on these teeth? I've ordered spares that are supposed to arrive by UPS today. For digging in dirt the current teeth are fine. For caliche, the sharper and longer points sure do make digging easier. I've found a source for the twin point teeth for a little over $11 each when bought in sets of 5, and the single tooth models are a bit cheaper. However, spending $50 on teeth in 50 hours seems excessive. The caliche is very abrasive.
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