Save space and money
Simple Structure

Drill
Brand: Makita
Model Number: XPH12

Flange unit (bearing)
Brand: シミズ精工（Shimizu Seiko）
Model Number: SFB38-10

Hole saw
Brand: ニコテック（Nikotech）
Model number: H-BM 54.0

Double-coated adhesive tape (peelable)
Brand: Nitto Denko (Nitto)
Model Number: 5000NS

Digital angle meter
Brand: AUTOUTLET

Epoxy putty
Brand: Cemedine
Model Number: HC-115