Drilled connector holes were a recurring part of my roof-mount fabrication. The Mayhew set sits in my purchased layout tools for the stage between marking a hole and bringing in the drill.
The drilled connectors and fasteners joining my added extrusion to the roof rack.
The item in my kit
I bought Mayhew 62215 Center Punch Set as part of my camper van equipment.
Drilled connector holes were a recurring part of my roof-mount fabrication. The Mayhew set sits in my purchased layout tools for the stage between marking a hole and bringing in the drill.
Where it fits my build
For the light bar, I cut an added extrusion beam and made three short drilled connectors. The rack side used quarter-twenty hardware, while the smaller 2020 extrusion used M5 hardware.
The different nuts changed the assembly sequence. A rack nut had to slide in through an opening, which meant undoing bolts I had already tightened; the smaller nuts could move and spin while I tried to start a bolt. I used an Allen key to reposition them.
The profiles and joint hardware during my roof-mount assembly.
My build notes
The cutting and drilling made the components, but positioning the small hardware took its own time. I recorded the difference between inserting the rack nuts and fishing the smaller nuts into place because it affected how the joint went together.
The profile, connector shape, bolt and slot nut all contributed to the assembly sequence.
Alternative products
Two alternatives to compare
The single Mayhew punch replaces an assortment with one size. The Starrett automatic punch changes the action from a hammer-struck tool to a spring mechanism.
Mayhew 24003 Center Punch
This single Mayhew center punch has a pointed working end and a struck head. It provides one punch size instead of a multi-piece assortment.
