Made of high quality Alloy tool steel 40Gr which is forged and has longer life, not Aluminum. Precision ground and hardened. Turning and facing tools can be locked in together. High quality 10.9 grade galvanized screws which have 1 time longer life than others. Center bolt thread: M14×1.5. Set crew thread: M12×1.75. Height adjustment screw allows to accommodate various center height of different lathe chuck. DA #1 250-501 Quick Change Turning Facing Tool Post Holder for 17 to 48 Swing. Feature: High performance, reliable quality. We work with every effort to provide quality products and professional service. Specification: Material: Steel Tool Post Type: Quick Change Tool Post. Quick Change Tool Post Category: Quick Change Tool Holders Quick Change Tool Post Series: DA Holder Number: #1 Holder Capacity: 1-1/4. Hex Key Size: 1/4. Max Tool Cutting Size: 1-5/16. Set Screw Thread Size: M12×32. Thank you for your understanding. DA #1 Quick Change Turning Facing Tool Post Holder CNC 250-501. Quick Change Tool Post Category. Quick Change Tool Holders. Quick Change Tool Post Series. Set Screw Thread Size. Max Tool Cutting Size. We will try to answer most emails within 3 days. We are open Monday to Friday 8am to 5:30pm Pacific Standard Time, and Saturday 8am to12noon. Our friendly staff are available during these hours. We’ll do our best to solve your problems. Set_id=880000500F’ center center / 100% auto no-repeat; #product1_3c998d565eec70d0d9fe47a671c82a70. Image{width: 100%;} #product1_3c998d565eec70d0d9fe47a671c82a70. Title{margin: auto; width: 85%; font-size:11px; font-family: Arial; line-height: 12px; text-decoration: none; display: block; height: 2em; overflow: hidden; text-align: center; color : #191919; padding-top: 4px;} #product1_3c998d565eec70d0d9fe47a671c82a70. Title:before{content:’6 Ton Hydraulic Crimper Crimping Tool Wire Battery Cable Lug Terminal W/ 8 Dies';} #product1_3c998d565eec70d0d9fe47a671c82a70. Item-id{font-size:11px; line-height: 12px; text-decoration: none; display: block; overflow: hidden; color : #191919} #product1_3c998d565eec70d0d9fe47a671c82a70. Item-id:before{content:’113807556582′;} #product1_3c998d565eec70d0d9fe47a671c82a70. Price{display: block; color : #bf0000; padding: 10px 0 4px; text-align: center; font-size: 16px; font-family: Arial; font-weight: 600; -webkit-text-size-adjust:none; text-decoration:none;} #product1_3c998d565eec70d0d9fe47a671c82a70. Price:before{content:’USD 31.42′;} #product1_3c998d565eec70d0d9fe47a671c82a70. Set_id=880000500F’ center center / 100% auto no-repeat; #product2_3c998d565eec70d0d9fe47a671c82a70. Image{width: 100%;} #product2_3c998d565eec70d0d9fe47a671c82a70. Title{margin: auto; width: 85%; font-size:11px; font-family: Arial; line-height: 12px; text-decoration: none; display: block; height: 2em; overflow: hidden; text-align: center; color : #191919; padding-top: 4px;} #product2_3c998d565eec70d0d9fe47a671c82a70. Title:before{content:’ER11/ER16/ER20/ER25/ER32/ER40 Spring Collet Set For CNC Milling Lathe Machine';} #product2_3c998d565eec70d0d9fe47a671c82a70. Item-id{font-size:11px; line-height: 12px; text-decoration: none; display: block; overflow: hidden; color : #191919} #product2_3c998d565eec70d0d9fe47a671c82a70. Item-id:before{content:’115475727962′;} #product2_3c998d565eec70d0d9fe47a671c82a70. Price{display: block; color : #bf0000; padding: 10px 0 4px; text-align: center; font-size: 16px; font-family: Arial; font-weight: 600; -webkit-text-size-adjust:none; text-decoration:none;} #product2_3c998d565eec70d0d9fe47a671c82a70. Price:before{content:’USD 38.10′;} #product2_3c998d565eec70d0d9fe47a671c82a70. Set_id=880000500F’ center center / 100% auto no-repeat; #product3_3c998d565eec70d0d9fe47a671c82a70. Image{width: 100%;} #product3_3c998d565eec70d0d9fe47a671c82a70. Title{margin: auto; width: 85%; font-size:11px; font-family: Arial; line-height: 12px; text-decoration: none; display: block; height: 2em; overflow: hidden; text-align: center; color : #191919; padding-top: 4px;} #product3_3c998d565eec70d0d9fe47a671c82a70. Title:before content:’4\\.