> Metrology > Metrology Products > Precision Measuring Tools > Squares > Combination Squares / 435-12-4R * Not actual product image 51556 Squares / Combination Squares 435-12-4R 12" Combination Set with Square, Center and Reversible Protractor Head and Blade 51556 Other similar products 435-12-16R 435-12-4R 435-18-4R 435-24-4R 435M-300 435M-600 435ME-300 435ME-600 C435-12-4R C435M-300 The Starrett 12" Combination Set with Square, Center and Reversible Protractor Head and Blade features reversible lock bolts, scriber, spirit level in both square head and protractor head, direct reading double 180º protractor scale, hardened steel, photo-engraved blade. The combination set with square also includes a cast iron head with black wrinkle finish. Also available with satin chrome blade and protractor head. 12”, 4R Grad Videos Features Specifications Parts Downloads Open Starrett-3D Parts Catalog Contact Starrett Videos HD - Combination Square Tricks - Carpenter Tools Views: 285953 Features Reversible lock bolts, scriber, spirit level in both square head and protractor head Direct reading double 180º protractor scale Hardened steel, machine divided blade Regular Finish Blade Cast Iron Heads with Black Wrinkle Finish Specifications Blade Length (in): 12" Blade Finish: Regular Graduation Type: 4R Graduations: 8ths, 16ths, Quick Reading 32nds, 64ths Head Finish: Black Wrinkle Head Material: Cast Iron Head Types: Square, Center, Protractor Number of Pieces: 4 Protractor Type: Reversible Parts Member of Kit Item #DescriptionPart No.QtyInformation 10HEAD, SQUAREH11-12241 15•STOCK, SQUARENOT AVAILABLE (4)1 20•LOCK BOLT KITPT990061 30••BOLT, LOCK #11-1222658-01 40••WSHR,.205X.380X.02007769-01 50••NUT, .231-2801083-01 60••SPRING, .260X.310X.563X.025X 501086-01 70•PLUG, EXPANSION17816-01 80•BUSHING, AWL #11-601087-1/21 90•VIAL, .281X1 5/1613263-01 100•NAMEPLATE, STARRETT05838-01 110•AWL SUB ASSEMBLY07659-C1 120HEAD, CENTERC11-12241 125•STOCK, CENTER HEADNOT AVAILABLE 1 130•LOCK BOLT KITPT990061 140••NUT, .231-2801083-01 150••BOLT, LOCK #11-1222658-01 160••WSHR,.205X.380X.02007769-01 170••SPRING, .260X.310X.563X.025X 501086-01 180HEAD, PROTRACTORPR-1224W1 190•TURRET LOCK SCREW KITPT990822 200••SCREW, .157-40 LOCK X .267 LONG01170-1/21 210••WSHR,.161X.347X.12601171-1/21 220••SPRING, .178X.220X.313X.021X 301173-01 230•FRAME, WRINKLE, REVERSIBLENOT AVAILABLE1 240•TURRET, PLAIN, WRINKLENOT AVAILABLE(2)1 245••STOCK, TURRETNOT AVAILABLE(3)0 250••SCREW, .125-40 SLOT X .225 LONG03421-02 260••LOCK BOLT KITPT990061 270•••BOLT, LOCK #11-1222658-0(2)1 280•••NUT, .231-2801083-0(2)1 290•••WSHR,.205X.380X.02007769-0(2)1 300•••SPRING, .260X.310X.563X.025 X501086-0(2)1 310••LEVEL ASSEMBLYPT990831 320•••HOLDER, VIAL08416-01 330•••VIAL, 9/32X1 1/1613262-01 340•••LEVEL PLUG16358-01 350BLADE, #4 GRADB12-4R1 360CASE ONLY, PLASTIC W/ INSERTPT440550 Downloads Open Starrett-3D Parts Catalog Combination Square Insert - Form 955 (PDF)