Drillco 7/8-14 HSS Left Hand Bottom Tap (23A156FB)
Drillco 23A156FB 7/8-14 HSS Left Hand Bottom Tap is engineered to create precise left-hand (counterclockwise) threads with a bottoming chamfer designed for threading close to the bottom of blind holes. This tap is ideal for applications where the fastener could loosen due to reverse rotation or vibration, providing secure threading in tight spaces. Crafted from premium-grade high-speed steel (HSS) with a protective black oxide finish, it offers excellent durability and extended tool life for both manual and machine tapping operations.
7/8-14 left-hand bottoming tap for threading near the bottom of blind holes
Constructed from premium-grade high-speed steel (HSS) for superior strength
Bottoming chamfer geometry ensures full thread depth in tight spaces
Standard square shank for compatibility with tap wrenches and machines
Black oxide finish for enhanced wear resistance and longer tool life
Made in the USA to rigorous quality standards
Creates secure left-hand threads in applications requiring counterclockwise threading
Allows threading close to the bottom of blind holes for maximum thread engagement
Provides long-lasting performance with reduced wear due to black oxide coating
Suitable for both manual and machine tapping environments
Technical Specifications:
Thread Size: 7/8-14
Thread Direction: Left-hand
Tap Type: Bottoming
Material: Premium-grade high-speed steel (HSS)
Finish: Black oxide
Shank: Standard square
Application: Threading close to the bottom of blind holes with left-hand threads
Product identification
- Brand: Drillco
- Model / MPN: 23A156FB
