Requirements for Use Required Badges Bench Grinder Watch Video Pass Quiz In person checkout required Facilitator Checkout Community Facilitators are volunteers who to advise MakeHaven members on projects and show members how to use the tools. Facilitator hours will be BY APPOINTMENT during their listed hours. To make an appointment, contact the facilitator directly via Slack. To prevent unnecessary space access during the pandemic, facilitators will not be in the space unless they have an appointment. Note that some facilitators are available only for online virtual appointments at this time. Any questions please email info@makehaven.org. Community Facilitators are volunteers who to advise MakeHaven members on projects and show members how to use the tools. Estimated Minutes for Checkout 5 Minutes Associated Slack Channel metal The Cubic Boron Nitride wheels are used for grinding carbide and hardened steel, primarily for lathe turning tools.