Williams Gun Sight 8-40 High Speed Tap & #28 Drill Set. 8-40 Tap & #28 Drill Set. Precision machined from a solid steel material you can trust the 8-40 tap. And the drill bit made from high speed steel you can trust the 28 drill bit too. With this drill bit set you can tap your dovetails and drill new dovetail holes with the new Williams Gun Sight Co. Drill Bit & Tap Co. This handy set will allow you to start working on your gun right away. You won't regret getting this make you by far. Specifications for Williams Gun Sight 8-40 High Speed Tap & #28 Drill Set: Manufacturer: Williams Gun Sight Fabric/Material: Metal Color: Black Silver Condition: New Quantity: 1 Package Contents: Williams Gun Sight 8-40 High Speed Tap & #28 Drill Set The Williams Gun Sight 8-40 High Speed Tap & #28 Drill Set is a quality addition to the Williams Gun Sight Company lineup. For more great deals on Sight & Optic Tools by Williams Gun Sight Company please browse our Williams Gun Sight Gunsmithing Equipment page. Williams Gun Sight 1768: 8-40 High Speed Tap & #28 Drill Set