Steel Squares SERIES 916 SPECIFICATIONS Beveled Edge Squares Inch Size 2" 3" 4" 6" 8" Order No. 916-100 916-101 916-102 916-103 916-104 Outside Dim. 2 x 1.6" 3 x 2" 4 x 2.75" 6 x 4" 8 x 5" Squareness .00010" .00011" .00012" .00014" .00018" Outside Dim. 2.9 x 1.9" 3.9 x 2.7" 5.9 x 3.9" 7.8 x 5.1" 9.8 x 6.5" 11.8 x 7.8" 15.7 x 9.8" 19.6 x 11.8" 29.7 x 15.7" 39.3 x 19.6" Squareness .00026" .00028" .00032" .00036" .00040" .00044" .00052" .00059" .00080" .00116" Regular type and beveled-edge type steel squares. All edges are hardened and precision ground. (Only blade is hardened on engineers Square) 916-402 Regular Squares Inch Size 3" 4" 6" 8" 10" 12" 16" 20" 30" 40" Order No. 916-401 916-402 916-403 916-404 916-405 916-406 916-407 916-408 916-409 916-410 916-401 916-100 916-424 916-423 916-410 916-409 Regular Squares "Engineers Square" Size Inch 2" 3" 4" 6" 9" 12" 18" 24" 2, 3, 4, 6" Set 4, 6, 9, 12" Set Order No. 916-590 916-591 916-592 916-593 916-594 916-595 916-596 916-597 916-598 916-599 Outside Dim. 2.70 x 1.98" 3.73 x 2.38" 4.65 x 2.97" 6.85 x 3.93" 10.50 x 6.30" 13.63 x 8.25" 20.25 x 10.50" 26.83 x 13.35" Squareness .00063" .00063" .00063" .00063" .0008" .001" .0012" .0015" 916-408 High Precision Square FEATURES Inch Order No. 916-421 916-422 916-423 916-424 916-422 SERIES 311 Beveled Edge Squares with Beam Size 3" 4" 6" 8" 916-421 Outside Dim. 3 x 2" 4 x 2.75 6 x 4" 8 x 5" Squareness .000091" .000094" .00010" .00011" The High Precision Square is a gage used for inspecting the travel straightness and axial perpendicularity of moving elements on equipment such as machine tools, CMMs, form measuring machines and semiconductor related equipment. * Four precision-lapped reference surfaces. * Better than 1m/300mm straightness and perpendicularity. 311-111 SPECIFICATIONS Metric Order No. 311-111 311-112 311-113 * 311-113 is supplied with a removable handle. 311-113 311-112 US-1002 Dimension (W x L x T) 90 x 110 x 25mm 160 x 210 x 25mm 260 x 310 x 30mm E-33 Mass 1.5kg 5.0kg 14.0kg