Road planing tool
View Patent ↗A road planing tool includes a tool holder having a front end thereof formed with an assembling socket, and a tool bit being in a cone-like shape and having a tip and a bottom, wherein the bottom is configured to be fittingly inlaid in the assembling socket. The road planing tool is characterized in that: the bottom of the tool bit has a plurality of projecting retaining teeth, and the assembling socket is peripherally formed with a toothed inner rim correspondingly, wherein fittingly engagement between the retaining teeth and the toothed inner rim allows the tool bit to be firmly combined with the tool holder.
1. A road planing tool, comprising:
a tool holder having a front end thereof formed with an assembling socket; and
a tool bit being in a cone-like shape and having a tip and a bottom, wherein the bottom is configured to be fittingly inlaid in the assembling socket;
the road planing tool being characterized in that: the bottom of the tool bit has a plurality of radially projecting retaining teeth, and the assembling socket is peripherally and radially formed with a concavely and convexly toothed inner rim correspondingly, wherein fitting engagement between the retaining teeth and the toothed inner rim allows the tool bit to be firmly combined with the tool holder.
2. The road planing tool of claim 1 , being characterized in that: each of said retaining teeth has a tooth top at a top thereof and a tooth base at a bottom thereof, wherein the tooth top has a width larger than a width of the tooth base.
3. The road planing tool of claim 1 , being characterized in that: a welding pass is provided along a boundary between the retaining teeth and the toothed inner rim, for strengthening combination between the tool bit and the tool holder.