12 inch bolt for sale, brand-new and used.

BROWN&SHARPE NO. 621 SURFACE GAUGE HARDENED &GROUND BASE SIZE OF BASE 3/1/2---X--2/1/2 BASE HAS V GROVE FOR ROUND WORK ROD SIZE 12 INCH WITH SWIVEL BOLT&SCRIBER ROD CAN HOLD DIAL INDICATOR HAS PUSH PINS FOR EDGE WORK

Cast Iron Head with black wrinkle finish 12-inch hardened steel, machine divided blade Reversible lock bolt, scriber, and spirit level Graduation is 8ths, 16ths--quick reading 32nds, 64ths The value of Starrett Tools is that they are accurate and will last With reversible lock bolt, scriber, spirit level Graduation: No. 4R - 1/8", 1/16", quick reading 1/32", 1/64"

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James Nasmyth: An Autobiography, edited by Samuel Smiles, originally published by Harper & Brothers, new York, NY, 1884. Reprinted by Lindsay Publications, Bradley, Ill., 1989. 4 x 7 paperback, xviii + 461 pages.

Plans to build the Farm Boy Hit-&-Miss 4-Cycle Engine Farm Boy is a bar stock engine requiring no expensive castings but is designed to look as though it was made from castings. As seen above, it is not possible to know it was made from bar stock. It is mostly aluminum alloy which is much stronger than castings and machines better as well.

Plans to build a "1779" 24 Pounder Naval Cannon A close replica to one of the 24 pound guns used on the ship USS Constitution. The original guns were 10 feet long and fired 24 pound iron balls. Canons of that era were usually of cast iron but sometimes bronze, and with oak carriages.

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