I'm about to build a sleeper retaining wall with a difference that will require 100mm screws from the back in a tight space - looking for a right angle drill attachment they were all around 5" deep before adding the 100mm screw - not far off the drill itself. Then I found this - not cheap compared to the others but only just over 1" at the head



Think of the tight spaces on the Mini that even if a ratchet can get in there you can only move it less than an 1/8 of the turn at a time - with this you hook up the drill and zip .... done

_________________
David L


My greatest fear in life is that when I die my wife will sell my Mini and tools for the price I told her I paid for them!

We have tried these at work and they sound good in theory.Getting enough pressure to actually drive the screw in is near impossible and they love to round out the screw heads usually while its half way in.
That said they would probably work quite well with a socket attached so bolts or tek screws may be ok.

I have that problem using the drill straight - cheap chinese cheeze used in the screws theses days

_________________
David L


My greatest fear in life is that when I die my wife will sell my Mini and tools for the price I told her I paid for them!

For screws I use nothing but Robertson, no more rounding, especially when you can't get enough pressure for Phillips, Pozi or flat.

Where I had the same issue I just went down at an angle. The screws aren't load bearing they're just locating the sleeper against the upright.

Built 100m of 1m tall walls at my last house. Learnt plenty of tricks.

_________________
But he's thriving and striving and hugging the turns.

These will be load bearing - vertical sleepers being screwed from behind to horizontal rails (another sleeper)

_________________
David L


My greatest fear in life is that when I die my wife will sell my Mini and tools for the price I told her I paid for them!

why not try using reinforcing rods [used for concrete work] to join the sleepers together...

5/8" timber drill bit on an extension shaft...drill right through on sleeper& 1/2 way through the one underneath. Bang in the rod with a BFH.

To support/secure the wall against the posts at the rear,drill holes down @ 45 degrees & use a rod there as well.

All drilling & hammering done from the open face of the retaining wall.

All this ^^^works because it is how i did mine ...still standing.

_________________
1974 1150cc Leyland Mini S racer,
1975 No motor Leyland Mini "ute"
1991 IPRA Honda Integra (in the build)
1995 Land Rover Discovery 300Tdi

CAMS Scrutineer

Do you mean the screws will be load bearing?

message

Yes to some extent - they will be 'dovetailed' The wall goes from 0 to 900 in 15 meters so the taller ones will be buried 600 to give more strength - the shorter ones will hold OK

_________________
David L


My greatest fear in life is that when I die my wife will sell my Mini and tools for the price I told her I paid for them!