Zero-Taper Steel Hole-Formers
These create a straight-through hole with no taper – like a cored hole.
Great for FLAT TOPS.
“Pick points” for lifting chains (when size appropriate) are available at no additional charge.
All zero-taper hole-formers feature Blackthorn’s EXCLUSIVE “Mighty-Fine” Release/Locking clamp – see it in action below!
Round Zero-Taper Steel Hole Former for Flat Wall/Flat Slab
Round Zero-Taper Steel Hole-Former for Cylindrical/Round Wall
(with magnet pockets)
Large Doghouse/Rathole Zero-Taper Steel Hole-Former
(with magnet pockets)
Parallel Zero-Taper Steel Hole Formers
Tapered Steel Hole-Formers
For when you need some taper in your formed hole.
CUSTOM MADE to your specifications – you tell us exactly how much taper you want.
“Pick points” for lifting chains (when size appropriate) are available at no additional charge.
Tapered Steel Hole-Formers for Flatwall in various sizes.
Small Tapered Steel Hole-Former with a 1/2″ Coil Insert installed
Stepped Tapered Steel Hole-Former
(great for headwalls)
