Widia Gtd
Widia Gtd 5365976 Spiral Point Tap pneumatic accessory
A spiral-point tap cuts 3/8-16 UNC threads in through-holes using three cobalt flutes with TiN coating
- Spiral-point design clears chips forward for smoother tapping
- Cobalt substrate with TiN coating resists wear in tough materials
- 3/8-16 UNC thread size fits standard fastening applications
- Three-flute geometry balances strength and chip evacuation
- H3 thread limit ensures accurate class-of-fit tolerance
Widia Gtd 5365976 Spiral Point Tap
This new Widia Gtd spiral point tap is designed for creating unified coarse threads in through-hole applications. It suits machinists and maintenance technicians who need reliable thread cutting in steel or similar materials. The plug chamfer with three flutes helps push chips ahead of the cut for smoother operation.
Cobalt substrate with TiN coating
The cobalt construction provides high heat resistance and wear life during repetitive tapping cycles. A titanium nitride coating further reduces friction and extends tool longevity compared to uncoated high-speed steel alternatives. These material choices directly affect how long the tap holds size and finish.
Right-hand UNC 3/8-16 thread form
Installation follows standard right-hand tapping procedure using a 0.3125 inch drill for approximately 75 percent thread engagement. The 3/4 inch thread length and H3 limit suit general-purpose through holes. Breakage risk rises if the tap binds, so consistent lubrication and alignment are critical.
Highlights
- Spiral-point design clears chips forward for smoother tapping
- Cobalt substrate with TiN coating resists wear in tough materials
- 3/8-16 UNC thread size fits standard fastening applications
- Three-flute geometry balances strength and chip evacuation
- H3 thread limit ensures accurate class-of-fit tolerance
Specifications
| Brand | WIDIA |
|---|
Questions about this item
Will the 3-flute cobalt spiral point tap need resharpening after repeated threading?
The cobalt substrate with TiN coating extends edge life; resharpening is possible but the tool is typically replaced once the cutting edges dull beyond practical use.
What limits continuous threading with the H3 thread limit tap?
The H3 limit provides a tight fit for 3/8-16 UNC threads; sustained use is limited by chip evacuation in deep holes and heat buildup in the cobalt body.
How much heat does the TiN-coated cobalt tap generate during all-day production tapping?
TiN coating reduces friction and heat; the 3-flute design aids chip flow, keeping temperatures manageable for extended runs in steel and stainless materials.
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