MC Template Map for Hygrade Precision Technologies, Inc. Map for Hygrade Precision Technologies, Inc. Search | Advanced Search | New Members | Coupons and Discounts | All Categories Industrial & Manufacturing >> Manufacturing >> Precision Machining & Turning Hygrade Precision Technologies, Inc. 329 Cooke St.Plainville, CT 06062 | directions 860-747-5773 Visit Site If your business isn't here, contact us today to get listed!