DIN 6499B ER SERIES COLLETS

Made of special elastic steel material 65Mn; Hardness: HRC 44-48
Powerful clamping ability, high precise accutacy
Used for boring, milling, drlling, tapping, grinding and engraving operation etc.
Kinds of sets available on request. (wooden case).
Detailed list and inspection tolerance as following.

Inspection as in the picture middle position.

Mounting instruction for ER collet and nut. (show as in picture bottom position)

1. Put the collet into the nut, turn the collet slightly, pust it into the nut at the offered direction evenly. When the offset flange into the undercut of the collet.
2. Fix the nut and the collet on the spindle rotate the nut until the collet is in pressing. Wipe the straight shank of cutter, and insertit into the pilot hole. Tighten the unt with a wrench till the cutter is clamped heavily(Caution: Never tighten the nut without cutter in it for it will bread)
3. When changing the tool, Loosen the nut and it shall bring out the collet and the cutter together, and the draw the cutter out slighly the collet in the offered direction, it shall be ready for any change of the cutter