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Menu Other Items Feedbacks About Us Contact Us Add To Favorites 1-2-3 Blocks Set Matched Pair .0002" Squareness Hardened Steel Setup Blocks Ultra Precision Machinist 1"X2"X3" Blocks for Machinist Woodwork Metalwork (1 Hole) Feature: 23 holes include 5 holes tapped to 3/8-16 and others untapped, cross drilling design allows for efficient use of lower weight with maximum strength. Accuracy: Squareness: 0.0003"; Parallelism: +/- 0.0002"; Height accuracy in pair: +/-.0002". Material]: Made of precision-grade tool stainless steel hardened and ground on all 6 sides of block, heat treated and case hardened to HRC 56-62. Application: Perfect for machinists, woodworkers, metalworkers, and more. Package Includes: 1 * matched pair 1-2-3 blocks. Feature: With 23 Holes Squareness: 0.0002"/1" Parallelism: ±0.0002" Height accuracy in pair: ±0.0002" Hardness: HRC 56-62 Finished from 6-16 micro inches 5 holes tapped to 3/8-16 and others are untapped Precision ground on all sides Squareness on all sides Surface finish Oversize to allow nominal tapping Package Includes : 1 * matched pair 1-2-3 blocks Item Specification Country of Origin China Package Dimensions 6.3 x 3.82 x 1.73 inches; 3.32 Pounds Size 1 Hole Dimensions Shipping Returns Additional Info Product Dimensions: 3.82 inches x 6.3 inches x 1.73 inches. Weight: 3.32 lb Fast shipping is very important for us. Our standard shipping service is FREE. Your order will be shipped within 1-3 business days upon full payment received. Most items are delivered within 3-5 business days, however, please allow 3-10 business days. We are shipping only to USA. We only ship to the confirmed Paypal address. We reserve the right to cancel any order for any reason at any time. We are not responsible for undeliverable addresses. We offer a 30 day return policy from checkout winning date. Your satisfaction is guaranteed! If for any reason you are unhappy with your item, just return it within 30 days for a full refund, minus shipping cost. Please contact us prior to initiating a return so that we can issue you a refund authorization. Items defective upon receipt must be packaged in their retail packaging as if new and returned with a detailed description of the problem. Return shipping fees are not refundable. We reserve the right to decline any returns if the above guidelines are not followed. All of our items, unless otherwise stated, will only run on 120 volts. Please check to make sure your country complies with these specifications. If you have a problem or question regarding your transaction please contact us before leaving any type of feedback. We will work with you to resolve any problem you may have.