Widia Gtd
Widia Gtd VTSFT-TC5136 Spiral Flute Tap #6-32 pneumatic accessory
A spiral-flute tap for #6-32 UNJC threads in high-speed steel with two flutes and bottoming chamfer
- Bottoming chamfer starts threads in blind holes
- Two-flute spiral design clears chips efficiently
- High-speed steel construction resists wear
- #6-32 UNJC thread fits standard aerospace fasteners
- H5 limit and 3B class ensure precise fit
What This Tap Does
The Widia Gtd VTSFT-TC5136 is a spiral flute tap for cutting #6-32 UNJC threads. It suits machinists and maintenance teams who need right-hand threads in through-holes or blind holes. High-speed steel construction handles general-purpose tapping in steel and non-ferrous materials. The bottoming chamfer lets you cut threads close to the bottom of a blind hole.
Who Should Choose Another
Buyers who need a taper or plug chamfer for easier starting should look at a different tap style. Shops requiring more flutes for harder alloys or higher-speed production will need a different geometry. This tap is not for left-hand threads, metric coarse pitches, or thread sizes other than #6-32. It also does not suit applications needing a larger drill size than #36.
The Spec That Decides Fit
The thread limit H5 and class of fit 3B define the tolerance zone for the finished thread. Match these values to your engineering drawing or quality standard before ordering. The 75 percent thread drill size #36 must match your drill inventory or the tap will not produce the correct thread height. Overall length is 1 31/32 in with a 3/8 in thread length.
Highlights
- Bottoming chamfer starts threads in blind holes
- Two-flute spiral design clears chips efficiently
- High-speed steel construction resists wear
- #6-32 UNJC thread fits standard aerospace fasteners
- H5 limit and 3B class ensure precise fit
Specifications
| Brand | WIDIA |
|---|
Questions about this item
How do I install the Widia Gtd VTSFT-TC5136 spiral flute tap correctly and what step is commonly missed?
Secure the workpiece, use a #36 drill for the 75 percent thread depth, apply cutting fluid, and start the tap straight; the step often missed is drilling the correct #36 hole size before tapping.
What maintenance or replacement will this #6-32 tap need after extended use?
The high-speed steel cutting edges will dull over time; inspect flutes for wear and replace the tap when thread quality degrades or the H5 limit can no longer be held.
What limit appears first when using this tap continuously in tough material?
The H5 thread limit and 3B class of fit are the first constraints; excessive heat or chip packing in the two flutes will cause oversize threads or tap breakage before other factors.
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