HSS-E spiral flute taps fine thread M4 2,8x2,1 P=0,5 DIN 374Application: Thread configuration with a special design, prevents overfeeding, thin thread and pitch diameter oversize. Flute geometry with special design, better chip evacuation, prevents chip clogging, improves thread quality Excellent performance on various work material: Stainless steel, carbon steel, alloyed steel, tool steel

For internal machining with boring bars

Surface hardened HRC 58~60

(applicable up to 21 bar)

For the transfer of a defined torque

Setting angle: 95°

Through hole for internal cooling provided

Thread confi guration with a special design

For measuring the groove diameter of shafts

Extremely strong holding force (increases the holding power by at least 60% compared to standard ER chuck)

For mounting solid drills with cylindrical shank according to DIN 6595

For mounting milling cutters with transversal groove

Torque setting types : Adjustable torque type