1-1/16" HSS 3MT Spiral Flute Bridge Reamer Shopify Collective 4-inch shank Torx drivers: T6

4-inch shank Torx drivers: T6 - T45

the shank diameter is reduced so the insulation can be molded flush with the tip

Part Number DWTH112-71614LH

it is designated as counterboring

Part Number D/ACT11

1-1/16" HSS 3MT Spiral Flute Bridge Reamer Shopify Collective 4-inch shank Torx drivers: T6Product Description Also called Construction Reamers, Bridge Reamers are used to align existing holes prior to bolt or rivet installation. The point is tapered to permit entry into overlapping holes. It's short length facilitates use in areas with limited access. Taper shank bridge reamer is commonly used in electric and pneumatic portable equipment. Brand Drill America Part Number DWRRB1 1 16 Size 1 1 16" Material High Speed Steel Finish Uncoated