Helicoil
Helicoil STANLEY 2087-6 Straight Flute Hand Tap M6x1
Creates M6x1 internal threads with a 69 mm high-speed steel straight-flute tap featuring a 34 mm thread length and three flutes
- TypeHole, Drill, Bore & Wire Gauges
- M6x1 metric thread cutting for precise repairs
- High-speed steel construction resists wear during tapping
- 69 mm overall length reaches deeper holes
- Plug chamfer with three flutes starts threads cleanly
- Thread length 34 mm suits standard engagement depth
Thread Repair Tap for M6x1 Holes
This Helicoil STI tap cuts internal threads sized M6x1 for screw thread inserts. The straight-flute, three-flute design suits hand operation in a workshop or maintenance setting. Bright uncoated high-speed steel handles general-purpose materials. Right-hand cut and plug chamfer start threads cleanly in through or blind holes.
Plug Chamfer Limits Blind-Hole Depth
The plug chamfer requires several threads of clearance before reaching full depth, so very shallow blind holes may not engage fully. Overall length is 69 mm with a 34 mm thread length, setting the maximum reach for hand tapping. Uncoated HSS wears faster in abrasive alloys than coated alternatives. Class 5H fit matches Helicoil insert tolerances.
D3 Thread Limit Defines Fit
The D3 thread limit controls the pitch-diameter allowance that determines whether the finished hole accepts the insert correctly. Selecting a different limit would produce an oversize or undersize thread and compromise the repair. Verify the required limit against the insert specification before tapping.
Highlights
- M6x1 metric thread cutting for precise repairs
- High-speed steel construction resists wear during tapping
- 69 mm overall length reaches deeper holes
- Plug chamfer with three flutes starts threads cleanly
- Thread length 34 mm suits standard engagement depth
Specifications
| Brand | Helicoil |
|---|---|
| Type | Hole, Drill, Bore & Wire Gauges |
Questions about this item
Which tap should I choose for an M6x1 thread repair?
The 2087-6 model is a straight-flute STI tap cut specifically for M6x1 metric threads with a D3 limit and 5H class of fit.
What does the 34 mm thread length mean when I use the tap?
It gives you 34 mm of cutting engagement to form clean internal threads in a single pass.
How does the plug chamfer affect starting the tap in a drilled hole?
The plug chamfer provides a moderate lead that helps the three flutes start straight in a pre-drilled hole.
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