Combined Machine Tap with round shank and square drive 30° Spiral Flute HSSE - BSW 1/4 x 20
€22.40
The Combined Tap enables the user to produce the tapping drill hole and the through thread in one operation without any tool changing. The tool incorporates a twist drill before the thread tapping part. This tool can produce through threads up to a maximuthreaded depth of 2 x D. The Combined Tap is suitable for universal use in materials of mediumechanical strength: non-alloyed and alloyed steel sorts up to 600 N/mm², malleable cast iron, nodulized graphite cast iron, copper, brass, aluminium, aluminium-magnesiuand zinc alloys, red bronze, electron metal, pressure-cast zinc. This tool should be used on machines possesing an RPswitchover facility for drilling and tapping. The feed rate must be adapted to the particular operation required - drilling or tapping. Tapping chucks with pressure compensation may not be used.
| Type of thread | Whitworth-Thread |
|---|---|
| Standard | Works Standard |
| Material | HSSE |
| Tolerance | medium |
| Size | BSW 1/4 x 20 |
| Overall length (L1) | 80 mm |
| Thread length (L2) | 22 mm |
| Core hole diameter (D1) | 5.1 mm |
| Shank diameter (D2) | 6.0 mm |
| Length (S1) | 22 mm |
| Drive connector | 4.9 mm |
| EAN | 4022835700142 |
| Item number | 70014 |
| Type of flute | 30° Spiral Flute |
| Application | for through holes |
| Thread standard | BS 84 |
