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Squares

Machinist's squares are tools used for measuring angles and scribing. They are normally available in an L shape consisting of a long blade and a short blade, and the long blade has scales carved on both sides. A type with a thicker short blade is called a square with a base, and it enables scribing work with more stability by being hooked onto the material. In addition, there is an I-shaped straight edge that can inspect flatness, parallelism and straightness, and an angle scribing square that can measure 45 and 135 degrees and be used for scribing. Adjustable squares can have the angle changed freely by adjusting a locking screw, so they are useful for scribing repeatedly with the same angle. As for materials, stainless steel is used for the long blade to ensure the accuracy of the scales, and aluminum, brass and other rust-resistant materials are used for the short blade. Machinist's squares are available in a wide range of materials and configurations, so choose a product that suits the application.
Days to Ship
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  • Same day
  • 4 Day(s) or Less
  • 5 Day(s) or Less
  • 6 Day(s) or Less
  • 7 Day(s) or Less
  • 8 Day(s) or Less
  • 9 Day(s) or Less
  • 10 Day(s) or Less
  • 11 Day(s) or Less
  • 14 Day(s) or Less
Brand
Product Series
Days to Ship
Product Type
Pole Length(mm)
Accuracy(mm)
Angle(°)
Base Length(mm)
Scale
Calibration Certificate

    Standard Steel Straight Edge Class A (Hardened)

      I-Beam Type Straight Edge (A Grade Hardening)

      • On Sale Till 31/03/2025

      Complete Square

        Straight Edge (eye beam type)

          Flat Square Square Uniseiki

            I-shaped Straight Edge Grade A

              Straight Edge (Ibeam type/quenched product)

                Flat Square D-shaped Flat Square JIS Grade 2 (JIS B7526 Standard Product)

                  I-beam Shaped Straight Edge

                    Flat Machinist's Square, TRUSCO NAKAYAMA

                      Steel Straight Edge (Flat Type)

                        Angled Ruler (with Stand)

                          Precision Cylindrical Square

                            Blade-shaped Straight Edge

                              Steel Straight Edge (Flat Type / Quenched Product)

                                I-Beam Type Straight Edge A Grade (Not Hardened)

                                  Free Gold without Scale

                                    Square with Stand, Non-Quenched

                                      RIKEN Normal Shape Straight Edge

                                        ibeam straight edge

                                          Radius Scale

                                            Right Angle Ruler JIS Class 1 Equivalent (Hardened)

                                              Beveled Straight Edges (Grade A Hardened)

                                                Right Angle Ruler JIS Class 2 Equivalent (Non-Hardened)

                                                  Miter Rule

                                                    Instant Stop-Type Ruler

                                                      Angled Ruler (Flat Type)

                                                        TRUSCO NAKAYAMA, Machinist's Square With Base

                                                          steelstraight edge (bevel type)

                                                            Flat Square JIS Grade 1 Quenched (JIS B7526 Standard Product)

                                                              Accurate Cylindrical Square

                                                                Accurate Thick Square

                                                                  I-beam straight edge RIBM series

                                                                    Set Square with Aluminum Stand, without Scale

                                                                      With square aluminum stand

                                                                        Standard Steel Straight Edge Class A (Not Hardened)

                                                                          One-Handed Scorer, Right Handed

                                                                            One-Handed Scorer, Left Handed

                                                                              Calibrated Square with Stand

                                                                                Calibrated Flat Type Square

                                                                                • On Sale Till 31/03/2025

                                                                                Mini Machinist Square, with Brass Table

                                                                                  Angle Scribing Square

                                                                                    Trapezoidal Stop Type Ruler

                                                                                      Aluminum Sliding Bevel with Angle Scale and Brace

                                                                                        Free Square without Scale

                                                                                        Brand

                                                                                        NIIGATA SEIKI (SK)

                                                                                        NIIGATA SEIKI (SK)

                                                                                        SHINWASOKUTEI

                                                                                        UNI SEIKI

                                                                                        UNI SEIKI

                                                                                        RIKEN KEISOKUKI

                                                                                        UNI SEIKI

                                                                                        OBISHI KEIKI SEISAKUSHO

                                                                                        OBISHI KEIKI SEISAKUSHO

                                                                                        TRUSCO NAKAYAMA

                                                                                        UNI SEIKI

                                                                                        OHNISHI MFG

                                                                                        UNI SEIKI

                                                                                        RIKEN KEISOKUKI

                                                                                        UNI SEIKI

                                                                                        NIIGATA SEIKI (SK)

                                                                                        SHINWASOKUTEI

                                                                                        RIKEN KEISOKUKI

                                                                                        RIKEN KEISOKUKI

                                                                                        RIKEN KEISOKUKI

                                                                                        SHINWASOKUTEI

                                                                                        NIIGATA SEIKI (SK)

                                                                                        NIIGATA SEIKI (SK)

                                                                                        NIIGATA SEIKI (SK)

                                                                                        SHINWASOKUTEI

                                                                                        SHINWASOKUTEI

                                                                                        OHNISHI MFG

                                                                                        TRUSCO NAKAYAMA

                                                                                        UNI SEIKI

                                                                                        OBISHI KEIKI SEISAKUSHO

                                                                                        RIKEN KEISOKUKI

                                                                                        RIKEN KEISOKUKI

                                                                                        RIKEN KEISOKUKI

                                                                                        SHINWASOKUTEI

                                                                                        ESCO

                                                                                        NIIGATA SEIKI (SK)

                                                                                        NIIGATA SEIKI (SK)

                                                                                        NIIGATA SEIKI (SK)

                                                                                        NIIGATA SEIKI (SK)

                                                                                        NIIGATA SEIKI (SK)

                                                                                        SHINWASOKUTEI

                                                                                        SHINWASOKUTEI

                                                                                        SHINWASOKUTEI

                                                                                        SHINWASOKUTEI

                                                                                        SHINWASOKUTEI

                                                                                        Product Series

                                                                                        Standard Steel Straight Edge Class A (Hardened)

                                                                                        I-Beam Type Straight Edge (A Grade Hardening)

                                                                                        Complete Square

                                                                                        Straight Edge (eye beam type)

                                                                                        Flat Square Square Uniseiki

                                                                                        I-shaped Straight Edge Grade A

                                                                                        Straight Edge (Ibeam type/quenched product)

                                                                                        Flat Square D-shaped Flat Square JIS Grade 2 (JIS B7526 Standard Product)

                                                                                        I-beam Shaped Straight Edge

                                                                                        Flat Machinist's Square, TRUSCO NAKAYAMA

                                                                                        Steel Straight Edge (Flat Type)

                                                                                        Angled Ruler (with Stand)

                                                                                        Precision Cylindrical Square

                                                                                        Blade-shaped Straight Edge

                                                                                        Steel Straight Edge (Flat Type / Quenched Product)

                                                                                        I-Beam Type Straight Edge A Grade (Not Hardened)

                                                                                        Free Gold without Scale

                                                                                        Square with Stand, Non-Quenched

                                                                                        RIKEN Normal Shape Straight Edge

                                                                                        ibeam straight edge

                                                                                        Radius Scale

                                                                                        Right Angle Ruler JIS Class 1 Equivalent (Hardened)

                                                                                        Beveled Straight Edges (Grade A Hardened)

                                                                                        Right Angle Ruler JIS Class 2 Equivalent (Non-Hardened)

                                                                                        Miter Rule

                                                                                        Instant Stop-Type Ruler

                                                                                        Angled Ruler (Flat Type)

                                                                                        TRUSCO NAKAYAMA, Machinist's Square With Base

                                                                                        steelstraight edge (bevel type)

                                                                                        Flat Square JIS Grade 1 Quenched (JIS B7526 Standard Product)

                                                                                        Accurate Cylindrical Square

                                                                                        Accurate Thick Square

                                                                                        I-beam straight edge RIBM series

                                                                                        Set Square with Aluminum Stand, without Scale

                                                                                        With square aluminum stand

                                                                                        Standard Steel Straight Edge Class A (Not Hardened)

                                                                                        One-Handed Scorer, Right Handed

                                                                                        One-Handed Scorer, Left Handed

                                                                                        Calibrated Square with Stand

                                                                                        Calibrated Flat Type Square

                                                                                        Mini Machinist Square, with Brass Table

                                                                                        Angle Scribing Square

                                                                                        Trapezoidal Stop Type Ruler

                                                                                        Aluminum Sliding Bevel with Angle Scale and Brace

                                                                                        Free Square without Scale

                                                                                        Days to Ship 31 Day(s) or more 36 Day(s) Same day or more 8 Day(s) or more 8 Day(s) or more 10 Day(s) or more 8 Day(s) or more 4 Day(s) or more 7 Day(s) or more 4 Day(s) or more 8 Day(s) or more 7 Day(s) or more 7 Day(s) or more 10 Day(s) or more 8 Day(s) 36 Day(s) 8 Day(s) 10 Day(s) or more 10 Day(s) or more 10 Day(s) or more 8 Day(s) 58 Day(s) or more 41 Day(s) 58 Day(s) or more 8 Day(s) 8 Day(s) 8 Day(s) 4 Day(s) or more 8 Day(s) or more 8 Day(s) or more 18 Day(s) 18 Day(s) or more 10 Day(s) or more 8 Day(s) 7 Day(s) or more 26 Day(s) or more 11 Day(s) or more 11 Day(s) or more 11 Day(s) or more 11 Day(s) or more Same day or more 8 Day(s) 8 Day(s) 8 Day(s) 8 Day(s)
                                                                                        Product TypeStraight edgeStraight edgeSquare With StandStraight edgeFlat set squareStraight edgeStraight edgeFlat set squareStraight edgeFlat set squareStraight edgeAngled RulerOtherStraight edgeStraight edgeStraight edgeFree Set SquareSquare With StandStraight edgeStraight edgeOtherSquare With StandStraight edgeSquare With StandSquare With StandMiter RuleAngled RulerSquare With StandStraight edgeFlat set squareOtherFlat set squareStraight edgeSquare With StandSquare With StandStraight edgeSquare With StandSquare With StandSquare With StandSquare With StandSquare With StandMiter RuleMiter RuleFree Set SquareFree Set Square
                                                                                        Pole Length(mm)--161 ~ 177-75 ~ 1000--75 ~ 300-75 ~ 1000-100 ~ 300-----50 ~ 1000---1500 ~ 2000-2000170-100 ~ 300100 ~ 1000-75 ~ 300100 ~ 30075 ~ 300----75 ~ 200075 ~ 2000.400 ~ 1000400 ~ 100045 ~ 90172---
                                                                                        Accuracy(mm)---0.032JIS grade 1 (grade 1 ± (10+L/20) µm hardness HS60° or more)-0.005 ~ 0.032-------0.0115 ~ 0.02-----±0.1 (R gauge) / ±0.05 (diameter gauge) / ±0.15 (ruler)JIS B 7526-JIS B 7526----0.035 ~ 0.04----0.1 mm or less per 100 mm--JIS Grade 2 equivalent productsJIS Grade 2 equivalent productsJIS Grade 2 equivalent productsJIS Grade 2 equivalent products-----
                                                                                        Angle(°)18018090--18018090180--45 ~ 120-180180180-90180180-901809045/9045/9045 ~ 120--90-9018090-180909090909045 ~ 45/9045/9020~120-
                                                                                        Base Length(mm)--94-50 ~ 550--50 ~ 200-50 ~ 500-73 ~ 300-----37 ~ 550---600 ~ 800-800163-70 ~ 30070 ~ 415-50 ~ 200ø60 ~ ø10045 ~ 170----50 ~ 80050 ~ 800200 ~ 550200 ~ 55035 ~ 55115---
                                                                                        ScaleNANAAvailableNANA----NANANANA--NANA---AvailableNANANAAvailableAvailableNANANANA---NA-NANANAAvailableAvailableNAAvailable / NAAvailableAvailableNA
                                                                                        Calibration Certificate---------------------------------------------

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