Quality grading the Ancient Star-shaped drill holes found worldwide.
This preliminary grading system is for those who are interested in ancient star shaped drill holes and how to grade them through observation and quality ranking.
With more ancient drill holes now being photographed and shared on the internet, it’s time to create a grading scale to authenticate the quality and condition of each machined drill hole.
Ancient star and pentagonal holes are Star Graded (SG) from Excellent (SG-1) to poor (SG-5).
Below are examples of ancient machined drill holes and the star grades assigned to them.
Star grades are assigned by visual observation and a final grade can be assigned once the dirt is removed from the star hole and when the inside walls are photographed for machined details.
The below star hole from Pescadero California is graded as SG-5 (Poor). From a distance the star shape is visible but closer inspection shows little to no internal lobes.
A SG-4 (Fair) grade is shown in the below star hole in Limestone from Missouri. SG-4 star shape holes have lobes slightly visible and running down the holes length, usually well worn with smooth internal walls.
The three star shaped drill holes from California (pictured below) are graded as SG-3 (Good). Star drill holes having pronounced internal lobes with heavy or little erosion are graded SG-3.
SG-2 (Very Good) star shaped drill holes have clean, sharp edges with a well defined star pattern, and little wear. The below 7-point star hole from New York is graded SG-2.
A 7-point star shaped tube will ultrasonically make both a heptagon hole (7 sides) and star hole (7-point). One tube makes both shapes in rock.
SG-1 (Excellent) Star shaped drill holes appear as if they were cut yesterday. Internal walls are machined smooth, and star pattern is sharp with little to no visible wear.
The above SG-1 star hole found in Volda, Norway is a fine example of star hole machining.
The below SG-1 star hole found in Scotland looks as if it were cut yesturday
The below SG-1 (Excellent) star shaped drill holes were cut within the last 8 years using ultrasonic technology.
Below are examples of ancient star shaped drill holes in rock from various locations. Final grading of a star hole must be accompanied with images inside the hole. All dirt and debris must be removed for a final grade.
Above star holes from Minnesota and below star holes from California are visually graded SG-3 (Good).
Pentagonal and 5-point star holes are created using the same shaped tube. One drilling tube makes both shapes in rock.
The below star and pentagonal shaped holes from the United Kingdom (Dartmoor) are visibly graded as SG-4 (Fair). A higher grade of SG-3 can be assigned if someone would dig the dirt out of the hole and photograph the internal structure for proper and final grading.
The below famous star shaped holes from America have a visual grade of SG-3 (Good). Although the holes are rounded, a higher grade can be assigned if observed internally.
The below star holes from North Carolina are graded SG-4. If the lobes continue within the hole, a SG-3 grade can be assigned.
Internal observation would help finalize a grade on the below star-shaped drill holes.
Below is a rock from Kentucky containing two star-shaped drill holes found at the Mammoth Cave National Park (near Sand Cave) The star holes may have a good grade of SG-3, but until the hole is photographed internally showing lobes running down the holes length, they are given a SG-4 (Fair) grade.
Below is a recap of the Star Grades accompanied with a star hole that represents each grade.
We can now communicate a star hole’s quality with this preliminary grading system.
The hunt for ancient star shaped drill holes in rock has begun (Star Wars).
All territories worldwide are fair game for hunting these enigmatic ancient machined stone artifacts. Happy Hunting!