/ Precision Measuring Tools / Precision Hand Tools / Fixed Gage Standards / Screw Pitch Gages / 284 * Not actual product image 284 Acme Screw Thread Gage 51319 279-281, 283-284, 286-287 Fixed Gage Standards Acme Standard Screw Thread Gage, 29 Deg, 1-10 Deg Pitch Range The Starrett 284 Acme Standard Screw Thread Gage is a standard for grinding and setting tools when cutting Acme threads, which have the same depth as square threads but the sides of the threads are at an inclination of 14-1/2 Deg (29 Deg included angle). This form of thread is used extensively and has in many instances replaced the square thread in machine construction. The advantages of the Acme thread is its strength and the ease by which it can be cut compared with square threads. Features Specifications Downloads 3D CAD Files / Exploded Parts Diagram Product Testimonials Other similar products 283 U.S. Standard Gage, Nos 0-36 Range 284 Acme Screw Thread Gage Contact Starrett Features The angles and edges of this gage are hardened, ground and carefully tested In use, the angle on the thread cutting tool is checked on the large precision-ground V at the end of the gage. Specifications Made in America: Yes Range (TPI): Acme Standard Screw Thread Material: Steel Downloads 2D Dimensional Drawing (PDF) .pdf 90.92 kb 3D CAD Files / Exploded Parts Diagram Login to see related product files. Or create an account. Product Testimonials Write a product review Write a product review Comments* First Name* Last Name* Email* Occupation The information you provide will be used in accordance with the terms of our privacy policy. I agree to the privacy policy. Please provide the required information. Thank you for submitting a product testimonial on www.starrett.com. By submitting information to Starrett, you acknowledge and give express permission for the L.S. Starrett Company to use and share your statements.