Cleveland
Cleveland C54598 Straight Flute Hand Tap Plug 3/8-24 UNF 3 Flutes H3 2.94 in
Cuts 3/8-24 UNF internal threads with a 1.25 in thread length and 2.94 in overall length
- Straight-flute design clears chips in through holes
- Plug chamfer starts threads easily in blind holes
- 3/8-24 UNF size fits standard fine-thread fasteners
- H3 limit produces a 2B class of fit
- High-speed steel resists wear during hand tapping
Straight Flute Hand Tap
The Cleveland C54598 is a straight flute hand tap designed for creating UNF threads in through holes. It suits machinists and maintenance technicians who need to cut precise internal threads by hand or with a tapping head.
Plug Chamfer for General Use
The plug chamfer provides a moderate lead for starting threads in through holes. High speed steel construction delivers durability for general purpose threading in steel and non-ferrous materials. The bright uncoated finish is suitable for standard workshop conditions.
3/8-24 UNF Thread Specification
This tap cuts a 3/8 inch diameter thread with 24 threads per inch in Unified National Fine form. The H3 thread limit produces a class 2B fit when used with the correct 8.50 mm drill size for 75 percent thread engagement.
Highlights
- Straight-flute design clears chips in through holes
- Plug chamfer starts threads easily in blind holes
- 3/8-24 UNF size fits standard fine-thread fasteners
- H3 limit produces a 2B class of fit
- High-speed steel resists wear during hand tapping
Specifications
| Brand | CLEVELAND |
|---|
Questions about this item
How do I install the 3/8-24 UNF tap and which drill size should I use?
Drill the hole with an 8.50 mm bit to achieve the 75 percent thread depth, then run the straight-flute plug tap by hand using a tap wrench, keeping it perpendicular to the workpiece and reversing frequently to break chips.
What maintenance or replacement will the H3 high-speed steel tap need over time?
The bright uncoated H3 tap will dull with repeated use; resharpen the flutes when thread quality drops or replace the tap once the cutting edges can no longer produce a clean 2B class fit.
What limit appears first when tapping multiple holes in hard material?
The 1.25 in thread length and straight-flute design make chip evacuation the limiting factor in sustained use, especially in deeper or tougher workpieces where chips can pack the flutes.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.
