Calc Gurren Lagann - GIGA DRILL BREAKER!

The iconic Giga Drill Break! A giant drill is made with Spiral Energy to destroy ones enemies! This is very explicitly done via energy to mass.
(Raw page)

Gurren Lagann novelization - volume 4 said:

A Giga Drill is a collection of materialized Spiral Energy. Gurren Lagann and Ark Gurren Lagann, which require enormous power, can be substantiated for a certain period of time during battle. This is because the operator's burden is too heavy. However, the Super Galaxy Gurren Lagann always wears their gigantic Giga Drills on both shouldiers. This is possible only if there is a transcendental spiral engine that produces Super Spiral Power. It was also a symbol of the overwhelming power of the Super Galay Gurren Lagann.

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Previously, I calculated Gurren Lagann to be 19.2492308m tall.
1104 pixels = 19.2492308m
1 pixel = 19.2492308m/1104 = 0.0174358975m
0.0174358975m X 114 = 1.98769231m
49 pixels = 1.98769231m
1 pixel = 1.98769231m/49 = 0.0405651492m
0.0405651492m X 1879 = 76.2219153m
76.2219153m/2 = 38.1109577m
0.0405651492m X 388 = 15.7392779m
0.0405651492m X 1758 = 71.3135323m
71.3135323m/2 = 35.6567662m

V = πH/3 (R2 + Rr + r2)
= π X 15.7392779/3 X (38.1109577^2 + 38.1109577 X 35.6567662 + 35.6567662^2)
= 67292.6535m^3

As with other Gurren Lagann mass energy calcs, we'll use a low end and a high end of titanium and steel respectively (those weighing 4500kg/m^3 and 7850kg/m^3 respectively).

(Low end)
M = 7292.6535 X 4500kg
= 32816940.8kg

(High end)
M = 7292.6535 X 7850kg
= 57247330kg

(Low end)
E = mc^2
= 32816940.8 X 299792458^2
= 2.94943955e24 joules
= 704.93297084130017538 teratons

(High end)
E = mc^2
= 57247330 X 299792458^2
= 5.14513343e24 joules
= 1.2297164029636711291 teratons

Final Results
Giga Drill Break (low end) = >704.933 teratons
Giga Drill Break (high end) = >1.23 petatons

And of course, that's only with the part of the drill I can find a scale for, so obviously the true result would be way higher.