General Tools 520 Precision Adjustable Trammel

The General Tools and Instruments 520 Adjustable Trammels draw large circles and measure sizable distances with the accuracy of a divider. Fine adjusting screw sets points accurately. Points are removable and may be replaced with the pencil holder. Die-cast bodies with hardened and ground. 3-Inch (76mm) needle-point legs. Clamp opening for beam is 3/8-Inch x 3/4-Inch(10 x 19mm). Conforms to government specifications GGG-T-661b.GENERAL TOOLS - THE PRECISE TOOL FOR DOING THE JOB EXACTLY RIGHT. Offering over 1,000 tools, we’re proud to provide tradesmen, craftsmen and DIYers around the world with a broad range of affordable, specific-purpose mechanical hand tools and precision measuring and inspection tools. For inquiries, please contact our Customer Service Department at 212-431-6100. We strive to provide our customers with 100% satisfaction. WORK SMARTER, MEASURE BETTER & BE MORE PRODUCTIVE WITH GENERAL TOOLS