1/4-18 NPTF Bottoming Tap Straight Flute T488 HSS ANSI B94-0
SKU#:
Minimum Quantity is 1 • Sold in increments of 1
Enter a value between 1 and 99999 in increments of 1.
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| Item # | Size | Length l1 (mm) | Length l2 (mm) | Length l3 (mm) | Diameter d2 (mm) | sq | Length l4 (mm) | z | Drill Ø | Qty | Stock | Price | Action |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| T4881029 | |||||||||||||
| T4881372 | |||||||||||||
| T4882134 |
- General purpose use, materials up to approx. 1000 N/mm2
- Suitable for both hand and machine operations
- Taper pipe reamer recommended prior to tapping
| ISO | VDI | Description | Condition | Hardness | Strength | Optimal |
|---|---|---|---|---|---|---|
| P | 1 | Steel - Non-alloy, cast & free cutting (~ 0.15 %C) | Annealed | 125HB | 440MPa | |
| P | 2 | Steel - Non-alloy, cast & free cutting (~ 0.45 %C) | Annealed | 190HB | 640MPa | |
| P | 3 | Steel - Non-alloy, cast & free cutting (~ 0.45 %C) | Quenched & Tempered | 250HB | 840MPa | |
| P | 4 | Steel - Non-alloy, cast & free cutting (~ 0.75 %C) | Annealed | 270HB | 910MPa | |
| P | 6 | Steel - Low alloy & cast < 5% of alloying elements | Annealed | 180HB | 610MPa | |
| P | 7 | Steel - Low alloy & cast < 5% of alloying elements | Quenched & Tempered | 275HB | 930MPa | |
| M | 14.1 | Stainless Steel - Austenitic | Age Hardened | 180HB | 610MPa | |
| K | 15 | Cast Iron, Grey (GG) - Ferritic / Pearlitic | 180HB | 610MPa | ||
| K | 17 | Cast Iron, Nodular (GGG) - Ferritic | 160HB | 570MPa | ||
| K | 19 | Cast Iron, Malleable - Ferritic | 130HB | 460MPa | ||
| N | 21 | Aluminum & Magnesium, wrought alloy - Non Heat Treatable | 60HB | 210MPa | ||
| N | 22 | Aluminum & Magnesium, wrought alloy - Heat Treatable | Age Hardened | 100HB | 360MPa | |
| N | 23 | Aluminum & Magnesium, cast alloy ?12% Si - Non Heat Treatable | 75HB | 270MPa | ||
| N | 24 | Aluminum & Magnesium, cast alloy ?12% Si - Heat Treatable | Age Hardened | 90HB | 320MPa | |
| N | 26 | Copper & Copper alloys (Brass/Bronze) - Free cutting, Pb > 1% | 110HB | 390MPa | ||
| N | 27 | Copper & Copper alloys (Brass/Bronze) - Brass (CuZn, CuSnZn) | 90HB | 320MPa | ||
| N | 28 | Copper & Copper alloys (Brass/Bronze) - Bronze (CuSn) | 100HB | 360MPa |
KEY
OptimalEffectivePSteelMStainlessKCast IronNNon-Ferous MetalsSTitanium & Super AlloysHHard Materials
Designation: N
Material: HSS
Finish: Colour Temp
Max Cut Depth: 1.5xD
Shank Form: A
Standard: ANSI B94-9
Thread Form: National Pipe
Thread Tolerance Class: null
Lead: Bottoming
