Shaft size specific stainless Steel Indexing HUB for converting tools to the same hub for tactical handles. Made in the USA high quality Stainless steel. Recommended: have handle installed while welding in order to index the tip of the tool properly. HUBS

1/4 ID - 6.35mm

5/16 ID - 7.94mm

3/8 ID - 9.52mm

7/16 ID - 11.11mm

1/2 ID - 12.7mm

9/16 ID - 14.29mm