Oil groove Forming Tap
Oil groove forming taps integrate exclusive axial internal coolant grooves on the tap shank, perfectly solving the heat dissipation and lubrication bottleneck of standard fluteless roll form taps during heavy-duty continuous tapping. Manufactured from premium HSS-E cobalt steel or upgraded HSS-PM powder metallurgy high-speed steel, this chipless cold extrusion tap shapes internal threads via metal plastic deformation without generating cutting chips.
TiN: Cost-saving for aluminum, brass & low-carbon steel
TiCN/TiAlN: Top pick for stainless steel, alloy steel & high-temperature tapping
DLC: Ultra-low friction coating dedicated to high-speed aluminum alloy machining
| Thread Size | Standard Pitch (mm) | Overall Length (mm) | Shank Diameter (mm) | Working Thread Length (mm) | Square Drive Width (mm) |
|---|---|---|---|---|---|
| M3 | 0.50 | 48 | 3.5 | 9 | 2.7 |
| M4 | 0.70 | 53 | 4.5 | 11 | 3.4 |
| M5 | 0.80 | 56 | 6.0 | 13 | 4.9 |
| M6 | 1.00 | 63 | 6.0 | 15 | 4.9 |
| M7 | 1.00 | 63 | 7.0 | 15 | 5.9 |
| M8 | 1.25 | 70 | 8.0 | 17 | 6.2 |
| M10 | 1.50 | 76 | 10.0 | 20 | 8.0 |
| M12 | 1.75 | 82 | 9.0 | 22 | 7.0 |
| M14 | 2.00 | 90 | 11.0 | 24 | 9.0 |
| M16 | 2.00 | 90 | 12.0 | 24 | 10.0 |
Customization & After-Sales Notes
Customizable options: Extra long shank, fine pitch threads, 5H/6G special tolerances, customized coating and laser customer brand logo engraving.
Machining Tip: Pair with extreme-pressure tapping fluid for stainless/alloy steel to maximize the cooling & lubricating advantage of the internal oil groove, further extend tap lifespan.
Quality Control: Each oil groove forming tap undergoes strict dimensional inspection, hardness testing and coolant channel flow test before delivery to guarantee consistent batch quality for global machining factories.
Advantage Comparison vs Standard Fluteless Roll Tap: 2–4 times longer service life, lower tapping torque, less adhesion & tap breakage, more suitable for deep hole and heavy-load tapping scenarios.
