# 4-40 UNC HSS Tap Set

The # 4-40 UNC HSS Tap Set includes high-speed steel hand taps designed for creating new threads or re-threading damaged and jammed threads. These versatile taps are ideal for hand use and general machine tapping, suitable for a wide range of materials in both through and blind holes. This set contains three styles: Taper, Plug, and Bottoming, providing the necessary tools for various threading requirements. These taps are a great addition to any toolbox.

Tool Features

Used to make new threads or re-thread damaged and jammed threads.
Hand taps are versatile for hand use and general machine tapping.
Suitable for a wide range of materials in through or blind holes.
Set includes three taps: Taper, Plug, and Bottoming.
Taper Style: Starts the thread square with the workpiece.
Plug Style: Generally used in thru holes.
Bottom Style: Generates the thread to the bottom of the hole.

Product Specifications

Attribute	Details
Size	#4-40
Material	High Speed Steel
Type	Set
Finish	Uncoated (Bright)
Number of Flutes	2
Overall Length	1-7/8"
Shank Type	Square
Tap Drill Size	#43
Thread Standard	UNC

Additional Resources

Drill America Catalog (PDF)

Watch the Video

Description

# 4-40 UNC HSS Tap Set

Tool Features

Used to make new threads or re-thread damaged and jammed threads.
Hand taps are versatile for hand use and general machine tapping.
Suitable for a wide range of materials in through or blind holes.
Set includes three taps: Taper, Plug, and Bottoming.
Taper Style: Starts the thread square with the workpiece.
Plug Style: Generally used in thru holes.
Bottom Style: Generates the thread to the bottom of the hole.

Product Specifications

Attribute	Details
Size	#4-40
Material	High Speed Steel
Type	Set
Finish	Uncoated (Bright)
Number of Flutes	2
Overall Length	1-7/8"
Shank Type	Square
Tap Drill Size	#43
Thread Standard	UNC