Aluminum cutting inserts brochure outlines the advantages of new inserts designed to mount into existing OTM HOLE-SHOT™ or HOLESHOT™-IS drills; available in WCGT 05 and 06 sizes; have polished surface and up-sharp geometry; ideal in soft, gummy material. Manchester/OTM Write in no. 217

8-page brochure describes hydraulic and air/-hydraulic collet closers; 1/4-6 in. collet capacity; fixed-length and pull-back designs can operate on either air or hydraulic pressure up to 5,000 psi; most can be interconnected with connector bushings to keep plumbing internal. Lexair, Inc. Write in no. 218

68-page fittings, tubing and accessories catalog; full-color photos and detailed part drawings; full line of miniature fittings and tubing from premium to commercial grade; many new components, including duckbill check valves, polycarbonate in-line filters, premium grade fittings with hard-line barbs and more. Ark-Plas Products, Inc. WRITE IN NO. 219

8-page brochure entitled Designing Your Compressed Air System ; determine the compressed air system required for plant applications; evaluate demand, supply requirements, storage needs, distribution systems and layout considerations to determine maximum efficiency; includes references and conversion formulas. Kaeser Compressors WRITE IN NO. 220