Tool Sets - brand generique - 40pcs 1/32'' X 6'' Steel Parallel Set .0001'' Precision Machinist Tools + Electronic On-board Finder Highlights brand generique 40pcs 1/32'' X 6'' Steel Parallel Set .0001'' Precision Machinist's Tools + Electronic On-Board Finder Description: +/- .0001" in Parallelism; Combo Set: 20 matched pairs, thin style Twin +/- .0001" in Height Size Range: intervals of 1/2 to 1-11/16" by 1/16" Each parallel is 1/32" thick x 6" long with no holes on the body With edge finder to quickly locate the working edge and win time when finding positions on milling machines, reamers, etc. Specification: Precision Parallel Set: Each set contains 1 pair of the listed height: 1/2; 9/16; 5/8; 11/16; 3/4; 13/16; 7/8; 15/16; 1; 1-1/16; 1-1/8; 1-3/16; 1-1/4; 1-5/16; 1-3/8; 1-7/16; 1-1/2; 1-9/16; 1-5/8; 1-11/16" Material: high carbon steel Edge finder: Overall length: 160mm Measuring range: 0-10mm / 0.4inch Accuracy: 0.02-0.01mm Battery: 2*1.5V battery (not included) The package includes: 20 pairs (40pcs) 1 piece edge finder parallel set