Presentation on theme: "BRX210 ‘Mechanical Blueprint Reading’"— Presentation transcript:
1BRX210 ‘Mechanical Blueprint Reading’ Unit #6Holes
2After studying this unit, you will be able to: Define the terms drilling, reaming, countersinking, counterboring, spotfacing, and boringIdentify and list the location and size of drilled, reamed, countersunk, counterbored, spotfaced, and bored holes
11Answers to Valve Cap Quiz 0.170 in.316 SST0.095 in.0.345 in.0.025 in.5:1± in0.176 in.0.005 in.0.095 in0.032/0.028± ½ º0.038/0.042Ø 0.095/0.0930.022/0.01850.037/0.033VCCritical Dimensions for Statistical Process ControlNo
13Answers to Eccentric Collar Quiz 1.178 in.0.688 in.2.548/2.5382.538 in.0.813/0.8120.239 in.1-1/4 in.1.105 in.2.548/2.538 length was 2.545/2.540Reamed0.673 in.4 (see note)0.1595/0.16950.344 in.Fullin.3 ga. Hot Rolled, Pickled and Oiled Sheet Steel0.001 in.0.390 in.1.260 in.