Tooth Assembly and Cutting Bits For Stump Grinder

A bit assembly for use in a disc of a for a stump grinding machine, the disc comprising a peripheral edge and defining a central axis, a radial direction and an angular direction, the bit assembly comprising:

• a first bit holder sized and shaped to be mechanically connected to the disc at the peripheral edge of the disc;
• a first bit;
• and
• a first connection hardware set structured and located to detachably mechanically connect the first bit to the first bit holder;
• wherein:
• the first bit extends beyond the first bit holder in the axial direction by a side clearance amount which side clearance amount is at least sufficient so that the stump grinding machine can perform the axial direction cutting characteristic of stump grinding machines.

A bit assembly for use in a tool including a rotating disc, the assembly comprising:

• a bit;
• a bit holder;
• a connection hardware set;
• and
• a shock absorber;
• wherein:
• the connection hardware set includes an elongated member that extends through the shock absorber and the bit holder and detachably mechanically connects the shock absorber and the bit to the bit holder;
• and
• the shock absorber is structured to absorb shocks imparted to the bit in operation of the tool.