// 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
STEP DRILL KIT · 3 PIECE
Drill Without Pre-Drilling
SKU · SHUSD1
Three Step Drills
High-performance drilling.
Three step drills covering 1/8" to 1-3/8". By Unibor. Built For Metal.™
3
Step
drills
drills
1/8-1-3/8"
Hole
range
range
75%
Longer
tool life
tool life
What's in the kit
3 step drills
1/8"-1/2"
STEP DRILL
3/16"-7/8"
STEP DRILL
1/4"-1-3/8"
STEP DRILL
$414.44
PTIA 2025 Tool Innovation Award
The Professional Tool & Industrial Alliance recognised the SITEH3RO™ system with its 2025 Tool Innovation Award.
The award recognises tools that materially change how a job gets done on site. The SITEH3RO™ system was selected for letting tradespeople do bench-quality drilling, reaming and threading using only the impact wrench they already carry.
Free US Shipping
Free shipping on all orders to the continental United States. Orders ship within 1 business day from our Lombard, IL warehouse.
Most orders arrive in 3 to 5 business days.
Designed by Unibor.
Three step drills covering every common hole size from 1/8" through 1-3/8". Spiral flute with split point for clean starts and accurate holes. SITEH3RO™ coating for up to 75% longer tool life. PTIA 2025 Tool Innovation Award winner.
| Pieces | 3 step drills |
|---|---|
| Coverage | 1/8" through 1-3/8" |
| Material | High-speed steel |
| Flute | Spiral, split point |
| Coating | SITEH3RO™ coating, up to 75% longer tool life |
| Shank | 7/16" hex |
| Compatibility | SITEH3RO™ holders + standard 3-jaw drill chucks |
Free shipping on all orders within the continental United States. Orders ship within 1 business day from our Lombard, IL warehouse. Most arrive in 3 to 5 business days.
