Toolholders & Collets

The Royal MTC Multi-Tasking Chuck from Royal Products is designed to handle large-diameter parts, small-diameter parts, and parts suited for I.D. gripping. According to the company, the key to this all-in-one design is the quick-change center hubs – there is no need ever to remove the chuck body from the lathe spindle.

OSG USA Inc., St. Charles, Illinois, recently expanded its SynchroMaster tap holder series to include an inch straight offering. The SynchroMaster 9550 is designed to turbocharge tapping performance.

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Mate Precision Technologies, a leading provider of innovative workholding solutions, has introduced a series of new enhancements for its 52/96 zero point workholding system.

With the ability to rapidly dial in runout with complete control, users spend less time tapping on the side of the tool and resetting tools and collets. Overall efficiency is increased, machining costs are lowered, and scrap is reduced with easyZERO.

Walter expanded the TC630 Supreme product range to include UNJC4 to UNJC9/16, UNJF4 to UNJF9/16 and MJ3 to MJ10 thread sizes. Optional internal coolant is available for thread sizes starting from MJ4, UNJF8 and UNJC8 to provide effective chip removal on deep threads.

Because of its tool size capability, the PG48 holders require the use of a brand-new press-fit assembly unit called the PGS 48. The PGS 48 is an automatic hydraulic press that generates up to 15 tons of force to press and remove collets from the holders and is a single-series machine designed only for PG48.

The MMC collet chuck is precision ground and pre-balanced to 30,000 RPM at G2.5 with runout accuracy of 3 microns at 4 times the diameter – ensuring accuracy and reliability during high-speed operations.

Rineck offers standard and custom shrink fit tool holders with various connections including CAT, HSK, BT, SK, PSC and straight shank extensions. In addition, ER shrink fit collets are available. For added rigidity, flange or dual contact holders are available for CAT and BT tapers.

A titanium nitride (TiN) bearing nut improves rigidity as the uniquely designed gold ring reduces collet damage, reduces micro vibration with the collet flange, and eliminates friction with the collet. It improves the cutting rigidity and the quality of the cut compared to traditional collet chucks.

Michael Herman, vice president sales for BIG DAISHOWA Inc., discussed a special promotion for the company's fine boring kit, which features the EWN2-152 fine boring head from BIG KAISER is said to enable manufacturing precise bores with guaranteed precision of .00005".

The DCN drills feature cylindrical shanks, which enable clamping of the drill in hydraulic toolholders (most recommended) or in spring collets. All drill bodies feature helical coolant holes. Prior to using the 12xD drill, it is recommended to drill a pre-hole by using a DCN 1.5xD drill or a centering drill.