NT's ER collet chucks accept the well known DIN standard collet. All ER Collet Chucks are made with NT's symmetrically ground design providing excellent accuracy and smooth operation. An excellent collet chuck for drilling, rigid tapping, milling and reaming applications. precision type ERC Tool length adjustment Preset screw is included in the holder. Press down on the tool shank toward the preset screw and rotate the tool for length adjustment. (Clockwise)Tool length shortened (Counterclockwise) Tool length extended Preset screw Holder When the desired tool projection length is reached, tighten the nut with a special spanner wrench (sold separately) securely. Holder size ERC L Completely sealed by short slotting No damage to ball bearings from coolant leakage 8 11S 11 16 20 25 32 40 50 Spanner size Recommended torque S-8E S-11E S-0 FK0030 FK0034 HS-1-16 HS -2-20 HS -2.5-25 HS-4-42 4 - 5 lbf-ft(44 - 62 lbf-in) 11 - 15 lbf-ft (133 - 177 lbf-in) 8 - 11 lbf-ft(89-133 lbf-in) 26 - 30 lbf-ft (310 - 354 lbf-in) 30 - 33 lbf-ft (354 - 398 lbf-in) 41 - 44 lbf-ft (487 - 531 lbf-in) 48 - 52 lbf-ft (575 - 620 lbf-in) 55 - 59 lbf-ft (664 - 708 lbf-in) 96 - 103 lbf-ft (1151 - 1239 lbf-in)

S T / E R C Straight Shank Type

Standard 16—degree taper collet

Standard 16—degree taper collet

ER Collet Chuck Accessories Holder Series Collet ER8 ERC8 ERC11S ERC11 ERC16 ERC20 ERC25 ERC32 ERC40 ERC50 Nut ERP-8 ERP-11S HDP-07A ERP-16 ERP-20 ERP-25 ERP-32 ERP-40 ERP-50 ER11 ER16 ER20 ER25 ER32 ER40 ER50 Preset screw HDS07A-ES11 ES16 HDS12A-ES20 HDS16A-ES25 HDS22A-ES32 ES40 ES50 Spanner Wrench S-8E S-11E S-0 FK0030 FK0034 HS-1-16 HS-2-20 HS-2.5-25 HS-4-42 ER collet chucks are supplied with preset screw and nut. (except for ER8) Special spanner wrench and collet are sold separately. Special Spanner Wrench NT spanner wrenches are manufactured to factory specifications and dimensions to achieve...