US$ 28.95
A helmet clamp is available to affix it to your headgear
Manufacturer Part Number: 639528
Manufacturer Part Number: 91213
Tool Checks Measurement Without Removing Caliper
) 8183061 Nylon Duckhead® Mount/Demount Tool
Bondhus 10816 1/2 X 3.0" Ballpoint Power Bit Bushing Driver A helmet clamp is available1 2 X 3. 0" Ballpoint Power Bit