Threading Technology – Clamping Technology 520

144 Machine Taps UNC UNF UNEF UN-8 M MF NPSF Rp (BSPP) G NPT NPTF Rc (BSPT) STI SELF-LOCK Accessories NPSM/NPSC Tech. Info v c Product Finder 1.5 Basic types of our EMUGE taps Rekord A STEEL GG GJV GAL AERO H HCUT Z SPEED • Straight flutes • Chamfer form C (2-3 threads) • Chamfer form E (1.5-2 threads) • For blind hole and through hole threads Note: Especially for short-chipping material. The flutes can hold only a part of the chips. There is practically no chip transport in an axial direction. We do not recommend using this tap type in deep blind hole or through hole threads in long-chipping material. Rekord B STEEL-L VA AL Z Z-SPEED • Straight flutes with spiral point • Chamfer form B (4-5 threads) • For through hole threads Note: Typical tool for through hole threads in long-chipping material. The spiral point pushes the tightly rolled chips ahead and prevents clogging of the flutes. Coolant-lubricant can flow freely. Do not use this tap type for a reverse cut! Rekord C TI NI • 8-15° left-hand spiral flutes • Chamfer form D (4-5 threads) • For through hole threads Note: The left-hand spiral flutes push the chips ahead. As opposed to the spiral-point design (Rekord B), the rake angle remains constant over the complete length of the chamfer. This means extremely stable chamfer teeth for high-strength materials. Rekord D STEEL GAL PVC TI Z SPEED • 10-15° right-hand spiral flutes • Chamfer form E (1.5-2 threads) • Chamfer form C (2-3 threads) • For blind hole threads Note: Especially to be recommended on automatic lathes and multi-spindle machines. The slow spiral flutes will be especially helpful in thread holes beginning with an increased diameter (counterbore or enlarged bore). Provided with internal coolant supply, this tap type will help to solve chip problems on CNC machines. Rekord DF TILEG NI • 10-15° right-hand spiral flutes • Additional helix correction “F” (relief) • Chamfer form C (2-3 threads) • For blind hole threads Note: Especially to be recommended on automatic lathes and multi-spindle machines. The slow spiral flutes will be especially helpful in thread holes beginning with an increased diameter (counterbore or enlarged bore). The additional helix correction “F” (relief) produces smaller, and tightly rolled chips. Provided with internal coolant supply, this tap type will help to solve chip problems on CNC machines. Enorm STEEL VA AL Z SPEED Z-SPEED • 35-50° right-hand spiral flutes • Chamfer form E (1.5-2 threads) • Chamfer form C (2-3 threads) • For blind hole threads in long-chipping materials Note: Typical tool for blind hole threads in long-chipping materials. The fast spiral flutes provide good chip removal from the blind hole. Depending on design and size, threads up to 3 x d 1 can be cut. Not to be recommended for threads beginning with an increased diameter.