Carrier profile · USDOT 4419391 · Updated Aug 16, 2026
Mcmaster Tools LLC
DBA SNAP ON
1 power unitMOUNT AIRY, MD50/100
AUTHORITY STATUS UNKNOWN
Operations & Lanes
Where this carrier actually runs, revealed by roadside-inspection geography over the last 24 months — not where they claim to operate, shown as state-level inspection density.
Inspection density by state· each tile = a state · shade = inspections, last 24 mo
Home base
MOUNT AIRY, MD
Density
fewermore