Drilling Large Holes in Cast Iron with a Trepan Tool

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=2HEruBtaC1c

Trepan drilling with Paul Debolt. Boring large holes to diameter takes too long and wastes material. Trepanning saves time and money! Not only does it require less horsepower than typical drills, a pristine slug is left behind, which can be sold or used to make other parts. • Paul walks us through how he uses his trepan tool, which is made of a Sandvik trepanning tool shank and a custom adapter for the tailstock. This approx. 3.75 hole is for the center of the Debolt Tramming Ring, which trues Bridgeport type milling machine heads WITHOUT indicator skip! • ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ • Links for this video • Debolt Machining Tramming Ring | https://bit.ly/2SKQrXR • Debolt Machine Shop Tour | http://bit.ly/2trcvu0 • Sandvik Trepanning Tool | https://bit.ly/2L9IiIA • Sandvik Technical Guides Products | https://bit.ly/2YTLQH1 • ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ • Reach us / CNC Info: • • Speeds Feeds: https://provencut.com • Download Fusion 360: https://www.dpbolvw.net/click-9255839... • Online Fusion 360 Training: http://bit.ly/LearnFusion360 • Hands-On CNC Classes: https://www.nyccnc.com/events • SMW Products: https://saundersmachineworks.com/ • CNC Resources: https://www.nyccnc.com 5 Reasons to Use a Fixture Plate on Your CNC Machine: https://bit.ly/3sNA4uH

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