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118 MMS April 2017 mmsonline.com TOOLING AND WORKHOLDING additional rigidity and accuracy, the CAT and BT interfaces are Big Plus as standard, but a Big Plus spindle is said to be unnecessar y to achieve performance with the chuck. A 32-mm, straight- shank design is also available. It is also possible to use smaller-diameter mill- ing tools through the use of PJC reduction collets. The 0.500"-diameter HMCJ can then accept 3 / 8 " and 1 / 4 " shanks, and the 12-mm-diameter HMCJ can accept 10-, 8- and 6-mm shanks. Big Kaiser Precision Tooling Inc., call 888-8665- 776 or visit us.bigkaiser.com. FACE MILL ACHIEVES FULL ENGAGEMENT IN CGI Kennametal's Mill 16 face mill is designed to tackle tough cast iron applications. The Mill 16 has a fine- and medium-pitch cutter body equipped with a single-screw, wedge-style clamping system. This reduces setting time in the tool crib and ensures rigid, no-fail tool placement, the company says. Each pocket on the cutter body is numbered, as are each of the insert's cutting edges, promot- ing accuracy and ease of use when indexing to a new cutting edge. The heart of the Mill 16 is a n o c tago na l, double-sided insert w i t h 16 e f f e c t i v e cutting edges. The face of each cutting edge contains an a g g r e s s i v e c h i p - breaker for positive c u t t i n g a c t i o n a n d increased chip flow. The wedge clamp on either side Big Kaiser has launched the HMCJ, a super-slim milling chuck with peripheral coolant supply, designed to support heavy-duty and finish-end- milling tasks with power and precision using 1 / 2 "- or 12-mm-diameter cutters. The newest, slimmer member of the Hi-Power Milling Chuck (HMC) family features a clamping bore with fine slots surrounded by hundreds of needle bearings, which ensures concentric, precise and smooth clamping when the nut is tightened. The HMCJ provides high gripping force to the cutting tool shank, as much as five to six times greater than collet chucks, the company says. SLIM MILLING CHUCK PROVIDES HIGH GRIPPING FORCE E D ITO R J E D D CO LE , jc o l e @ m m s o n l i n e.c o m The slim, yet rigid design of the chuck reduces the nut diameter to 1.260" (32 mm), the smallest in its class, Big Kaiser says. The chuck maintains a cross section of 0.394" (10 mm) to prevent chat- ter and promote cutting security. The maximum jet-through coolant pressure is 70 bar. Despite being designed for heavy cutting, the HMCJ milling chuck can maintain a runout accu- racy of 10 microns at 4×D, giving it additional flexibility for use on finishing applications. For