A 6.3 cm double-ended sandstone drill from Neolithic Lingjiatan has a thicker flattened end, a finer pointed end, and spiral and concentric wear consistent with rotary drilling. The video argues that horizontal grooves on the shaft record cord wrapping for a bow-drill spindle and that ancient Egyptian bow drills show identical marks. Those are the presenter’s interpretations, not established findings of the archaeological evidence. 🛠️
Lingjiatan drill is Neolithic; video argues it was used with a bow drill
Site mentioned
📍 Lingjiatan
Key facts
- The Lingjiatan find is a 6.3 cm double-ended sandstone drill from a Neolithic context.
- One end has a thicker flattened bit and the other a finer pointed bit.
- Spiral and concentric wear patterns are consistent with repeated rotary drilling.
- The video argues that horizontal grooves on the central shaft record cord or rope wrapping and that the drill served as a bow-drill spindle; the cited evidence does not establish that identification.
- The video also claims that ancient Egyptian bow drills show identical horizontal wear. Egyptian drilling and abrasive use are documented, but the claimed identical wear pattern is not independently established.
- The claim that bow-drill technology predates agriculture is not established by the cited evidence.
Sources
file.ahm.cn:444
Linked in video description
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by W Rienjang · 2025 · Cited by 1 — Some of the beads were drilled with a metal drill and fine abrasive, a technology that is well documented in South Asia but has not been documented on carnelian ...
Lingjiatan (Hanshan, Anhui prov., PRC) ca. 36003300 BCE ...researchgate.net
1-2: traces of monopolar drilling possibly made by means of hollow drill bits; 3: traces of monopolar boring possibly left by a sandstone borer/whetstone ...
Lingjatan Sitebaike.baidu.com
Stone Drill is an octagonal star pattern. Among the archaeological excavations at the Lingjiatan Site, the unearthed stone drill is one of the most significant ...
New findings unveiled at Lingjiatan relics siteglobal.chinadaily.com.cn
Several jade and stone relics were unearthed at the site, including the largest stone tool known as a yue and the largest jade ornament known ...
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