Norseman Drill and Tool Type 25L-AG Fractional Left Handed HSS Straight Flute Bottoming Hand Taps
Norseman Drill & Tool Type 25L-AG Left-Handed Bottoming Hand Taps
The Norseman Drill & Tool Type 25L-AG Fractional Left-Handed HSS Straight Flute Bottoming Hand Taps are engineered for precision threading in blind holes and applications requiring threads cut to the bottom of a drilled cavity. Built for machinists, toolmakers, and industrial technicians, these bottoming taps deliver exceptional accuracy, durability, and surface finish in critical manufacturing and repair operations.
Engineered with Hi-Tungsten & Hi-Molybdenum High-Speed Tool Steels
Each Type 25L-AG tap is crafted from Norseman’s premium Hi-Tungsten and Hi-Molybdenum high-speed tool steel blend, providing outstanding strength, heat resistance, and wear durability. This specialized metallurgy ensures the cutting edges stay sharp under heavy load, making these taps ideal for threading alloy steel, stainless steel, cast iron, mild steel, and other tough materials. The straight flute design supports stable cutting action and efficient chip control, crucial for threading blind holes with limited chip evacuation space.
Gold Surface Treatment for Maximum Lubricity
A signature gold surface treatment enhances lubricity and minimizes friction during tapping. This coating reduces torque, prevents galling, and helps maintain cooler cutting temperatures—greatly extending tool life and improving thread quality. The gold finish also assists operators with quick visual identification in multi-tap setups.
Precision Bottoming Design for Blind Hole Applications
The bottoming chamfer of the Type 25L-AG provides only one to two threads of lead, enabling the tap to cut full threads nearly to the bottom of blind holes. When paired with left-hand threading, these taps are ideal for specialized assemblies requiring reverse-rotation locking, enhanced vibration resistance, or anti-loosening performance.
Perfect for aerospace, automotive, industrial maintenance, and production machining, Norseman’s Type 25L-AG Left-Handed Bottoming Hand Taps offer premium tool steel construction, superior lubricity, and unmatched accuracy for demanding internal threading applications.
