Machine Tap 4-40 UNC Thread Pitch 3 Flutes, High Speed Steel Thread Forming Pointed Tap, Right Hand, Uncoated (Bright) Finish, Round Shank with Square End, Plug Chamfer, HSS Machine Screw Plug Tap

Machine Tap 4-40 UNC Thread Pitch 3 Flutes, High Speed Steel Thread Forming Pointed Tap, Right Hand, Uncoated (Bright) Finish, Round Shank with Square End, Plug Chamfer, HSS Machine Screw Plug Tap

BAIRONG 25pcs 4-40 x 1/4 Inch Stainless Steel Allen Head Hex Hexagon Socket Set Screws Cup Point with Hex Key Wrench, 4-40 x 1/4 Inch

IRWIN 12001ZR Tap Wrench #0-1/4" T-Handle