Cart 0

Trumbull 4-Way Meter Box & Curb Box Hand Key HK-3, Standard, Large, & Mueller Pentagon

Trumbull Manufacturing

  • $33.30

Hand Curb Box or Meter Box Pentagon Cover Key/Wrench 4-Side

3 Size Meter Box or Curb Box Wrench/Key

Four Sides:
  • 1 - Standard Pentagon Nut  and is slotted  to turn meter valves

  • 2 - Large Pentagon Meter Box Nuts
  • 3 - Mueller Large Meter Box Pentagon Nut
  • 4 - Chisel, Pry bar, or Scraper

  • Model HK-3
  • Standard and Large Key has recessed slots to retain the meter box or curb box cover when lifted
  • Mueller Size Nut has Mueller meter box cover retaining tab


The HK-3 has three pentagon sockets, plus a tapered-end prying blade. Socket 1 fits standard pentagon heads, and has a head retention cavity. It also has a slot to operate T-heads of curb and meter stops. The other two sockets both fit the 1-1/16″ pentagon head used on Mueller meter boxes. One socket has the head-retention cavity to retain the pentagon head during removal; the other socket has the external lug which engages the lid recess. Both methods assist in lifting the lid of a meter box from the frame. The tapered blade end is designed for prying, or for use as a chisel.

See our other listings for other styles and types.

Medium Carbon Steel Investment Casting - Plated Finish

Part Number Trumbull Manufacturing # HK-3

Compare to other manufacturer cross reference numbers: H-10820, MKH-10820

We Also Recommend