Square-drive holder that adapts any impact wrench to any SITEH3RO™ bit. Required accessory.
CONNECT
Full range
365°F
Precision fit
QUICK
Quick release
Select size
Selected
1/2" Square Holder
$66.50
Free shipping · ships in 24h
USH1266.50
The Power Tool Industry Association 2025 Tool Innovation Award recognises tools that meaningfully change how tradespeople work.
SITEH3RO™ won for letting one operator do work that previously needed a drill press and bench setup, using the impact wrench they already own.
Powered by your impact wrench
The holder is the adapter between your impact wrench and any SITEH3RO™ bit. One holder per impact wrench. It lives in the chuck and you swap bits as needed. Pick the drive size that matches your impact wrench (1/2" for most cordless impacts, 3/4" for heavy-duty pneumatic).
Fits any 1/2" or 3/4" square-drive impact wrench.
Built by people who work metal
SITEH3RO™ is the direct-to-tradesperson line from Unibor, a Lombard, Illinois metalworking-tool specialist that has supplied bridge builders, structural fabricators, and US shipyards for decades.
Designed by engineers who've spent careers in fab shops, to the standards real tradespeople set.
// About SITEH3RO™
Designed by Unibor. Made for metal.
SITEH3RO™ is Unibor's ultimate handheld metalworking solution - designed for on-site metalworking with just an impact wrench. Made for metalworkers, #BUILTForMetal
Square-drive holder that adapts your impact wrench to any SITEH3RO™ bit. Hardened steel, lifetime build. Required for using SITEH3RO™ taps, reamers, and step drills. Pick the drive size that matches your impact wrench.
SKUUSH12
Size1/2" square drive
DriveFits any 1/2" impact
Free US shipping on all orders. Ships from Lombard, IL within 24 hours.
