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71Architect's scale — A triangular architect s scale, made of brass An architect s scale is a specialized ruler designed to facilitate the drafting and measuring of architectural drawings, such as floor plans and orthographic projections. Because the scale of such… …
72Quinacrine — Systematic (IUPAC) name (RS) N (6 chloro 2 methoxy acridin 9 yl) N, N diethyl pentane 1,4 diamine Clinical data Trade names …
73Medical device — A medical device is a product which is used for medical purposes in patients, in diagnosis, therapy or surgery[citation needed]. Whereas medicinal products (also called pharmaceuticals) achieve their principal action by pharmacological, metabolic …
74Miter saw — A miter saw (also spelled mitre) is a saw used to make accurate crosscuts and miters in a workpiece. Contents 1 Manual miter saw 2 Power miter saw 2.1 Types 2.2 F …
75Coping saw — A coping saw. A coping saw is a type of hand saw used to cut intricate external shapes and interior cutouts in woodworking or carpentry. It is widely used to cut moldings to create coped rather than miter joints. It is occasionally used to create …
76Reciprocating saw — Example of a variable speed, reciprocating saw …
77Caliper — For other uses, see Caliper (disambiguation). A vernier caliper …
78Countersink — A countersink is a conical hole cut into a manufactured object, or the cutter used to cut such a hole. A common usage is to allow the head of a countersunk bolt or screw, when placed in the hole, to sit flush with or below the surface of the… …
79Grinding wheel — Grinding wheels A grinding wheel is an expendab …
80Blow torch — For other meanings, including oxy gas torches, see Blowtorch (disambiguation). An old fashioned kerosene blowtorch / blowlamp A blowtorch (US), blow torch (US), or blowlamp (UK) is a tool for applying lower intensity and more diffuse flame and… …
