UK Looking for a back box sds sort of chisel

[gazdkw82]

Didn't realise that was called stitch

 

[SparkySy]

I still stitch drill today it's the best, quickest and neatest way to chop out boxes even with all the modern gizmos! Oh and a scutch chisel too!

 

[davesparks]

these are brilliant. takes the hard work out of sinking boxes.
( n.b. not suitalle for small children or dry lining):

DeWalt SDS Plus Shank Comb Chisel 32 x 200mm

Order online at Screwfix.com. For light chipping and chiselling of tile, mortar, glazing compounds and other masonry products. FREE next day delivery available, free collection in 5 minutes.

www.screwfix.com

They're brilliant, all the bricklayers used them as their weapon of choice for demolition, chopping out old brickwork, cutting in doorways etc etc.
If I remember correctly they called them rex (or possibly wrecks) tools.

They kept them closely guarded but I managed to get hold of one for chasing.
[automerge]1577659169[/automerge]

Stitch drill it?

Stitch drilling basically means drilling a series of overlapping holes in something.

I believe the term originates from a method of repairing cracks in cast iron items known as stitching. This was described to me by my grandfather something like this: A hole is drilled at the root of the crack, tapped then a brass screw threaded in and cut off flush. Then another hole drilled overlapping the brass screw slightly, tapped and another screw inserted and cut off. This being repeated all the way along the crack.
I've got a feeling there may be more steps in tbe process but that's the general idea.