ER Collet Chucks Provide High Concentricity, Holding Power
T.M. Smith Tool has added Jacobs taper rigid ER collet chucks to its family of Jacobs taper tooling. These durable collet chucks are manufactured from premium-grade, through-hardened steel. The ER collet pockets are precision-ground to provide total indicator runout of 0.0002" or better. The company says that these collet chucks provide better concentricity and holding power than keyed and keyless drill chucks.
Available with a Jacobs taper #1, #2, #33 and #4 (JIFFY), these holders are primarily used in drilling applications. They are compatible with standard Jacobs taper spindles and accept standard ER collets. The chucks are available in ER16, ER20 and ER32 versions. Specials are always available to meet customer-specific needs. ER collets are ordered separately.
The combination of a digital boring head integrated with tool data software dramatically reduces the time required to set up a fine boring head. And still more IIOT-enabled advancements are just around the corner that will finally automate many boring operations.
Hummingbird takes on machining work that is too small for most shops to handle. In fact, Hummingbird tries not to handle it either. To accurately machine the tiniest parts, this shop relies on processes that are as hands-off as possible.
The force that holds the toolholder in the machining center's spindle can weaken over time. If you haven't checked drawbar force in a while, this may be the weak link in your process.