How to properly use calipers and the scale

Amazon:
Vernier Calipers https://geni.us/u4ELJ
Digital Calipers https://geni.us/3MA6dTk
Quality Digital Calipers https://geni.us/Czcw
Gauge blocks https://geni.us/NQoZAo9

Grateful Dead - 7/18/76 - Orpheum Theatre - San Francisco, CA

-- Set 1 --
00:00 Mississippi Half-Step Uptown Toodeloo
11:42 Cassidy
17:40 Row Jimmy
27:15 Mama Tried
30:57 Scarlet Begonias
42:43 Looks Like Rain
51:46 Tennessee Jed
1:02:27 New Minglewood Blues
1:08:22 Loser
1:17:11 The Music Never Stopped
-- Set 2 --
1:24:04 Might As Well
1:30:02 Samson And Delilah
1:37:40 Candyman
1:45:42 Lazy Lightnin' ~
1:48:23 Supplication
1:54:34 Let It Grow ~
2:01:31 Drums ~
2:04:50 Let it Grow ~
2:11:40 Wharf Rat ~
2:25:01 Drums ~
2:25:32 The Other One ~
2:31:57 Saint Stephen ~
2:40:36 Not Fade Away ~
2:47:37 Saint Stephen ~
2:48:35 The Wheel ~
2:54:38 The Other One ~
2:57:55 Stella Blue
3:09:15 Sugar Magnolia
-- Encore --
3:19:28 Encore Break
3:20:13 Johnny B. Goode

Recording Info:
(KSAN) Pre-FM ~ Reel Master ~ DAT (44.1k)

Transfer Info:
DAT (Tascam DA-40) ~ Tascam DA-3000 ~ Samplitude Pro X5 Suite ~ FLAC/16(3 Discs Audio / 1 DVD FLAC)

Transfers and Mastering by Charlie Miller

Notes:
-- This is a remastered version of shnid=150187 (fixes previous issues)
-- There's a line buzz but it gets quieter and doesn't interfere with the music
-- Thanks to Joe B. Jones for checking the pitch for me

High-capacity, slanted shelves are perfect for reshelving lots of books 18-gauge steel shelves welded to a 1" sq., 18-gauge steel frame Powder-coat paint finish in designer and standard colors Maximum capacity of 375 lbs. per truck,

(From Austin Kleon)