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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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  • 4 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
  • 18 Day(s) or Less
  • 20 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)

      Standard Steel Straight Edge Class A (Not Hardened)

        Accurate Cylindrical Square

          Precision Cylindrical Square

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

              I-beam Shaped Straight Edge

              • On Sale Till 31/03/2025

              Mini Machinist Square, with Brass Table

                TRUSCO NAKAYAMA, Machinist's Square With Base

                  Flat Square Square Uniseiki

                    A-shaped Square with Stand JIS Grade 2 (JIS B7526 Standard Product)

                      Square with Stand JIS Grade 1 Quenched (JIS B7526 Standard Product)

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

                          Steel Straight Edge (Flat Type / Quenched Product)

                            With square aluminum stand

                              One-Handed Scorer, Right Handed

                                I-Beam Type Straight Edge (A Grade Hardening)

                                  Beveled Straight Edges (Grade A Hardened)

                                    Miter Rule

                                      Steel Straight Edge (Flat Type)

                                        Standard Shape Straight Edge

                                          Standard Shape Straight Edge

                                            Blade-Shaped Straight Edge

                                              Flat Square Non-quenched

                                                Flat Speed Square JIS Grade 1

                                                  ibeam straight edge

                                                    Set Square with Aluminum Stand, without Scale

                                                      Radius Scale

                                                        Straight Edge (Ibeam type/quenched product)

                                                          Mighty Machinist Square

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

                                                              Right Angle Ruler JIS Class 1 Equivalent (Hardened)

                                                                One-Handed Scorer, Left Handed

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

                                                                    Calibrated Square with Stand

                                                                      Calibrated Flat Type Square

                                                                      • On Sale Till 31/03/2025

                                                                      Complete Square

                                                                        Angle Scribing Square

                                                                          Trapezoidal Stop Type Ruler

                                                                            Instant Stop-Type Ruler

                                                                              Aluminum Sliding Bevel with Angle Scale and Brace

                                                                                Free Gold without Scale

                                                                                  Free Square without Scale

                                                                                    Angled Ruler (with Stand)

                                                                                      Angled Ruler (Flat Type)

                                                                                        Flat Machinist's Square, TRUSCO NAKAYAMA

                                                                                        Brand

                                                                                        NIIGATA SEIKI (SK)

                                                                                        NIIGATA SEIKI (SK)

                                                                                        RIKEN KEISOKUKI

                                                                                        UNI SEIKI

                                                                                        OBISHI KEIKI SEISAKUSHO

                                                                                        OBISHI KEIKI SEISAKUSHO

                                                                                        SHINWASOKUTEI

                                                                                        TRUSCO NAKAYAMA

                                                                                        UNI SEIKI

                                                                                        OBISHI KEIKI SEISAKUSHO

                                                                                        OBISHI KEIKI SEISAKUSHO

                                                                                        OBISHI KEIKI SEISAKUSHO

                                                                                        UNI SEIKI

                                                                                        ESCO

                                                                                        NIIGATA SEIKI (SK)

                                                                                        NIIGATA SEIKI (SK)

                                                                                        NIIGATA SEIKI (SK)

                                                                                        SHINWASOKUTEI

                                                                                        UNI SEIKI

                                                                                        OBISHI KEIKI SEISAKUSHO

                                                                                        OBISHI KEIKI SEISAKUSHO

                                                                                        OBISHI KEIKI SEISAKUSHO

                                                                                        RIKEN KEISOKUKI

                                                                                        RIKEN KEISOKUKI

                                                                                        RIKEN KEISOKUKI

                                                                                        SHINWASOKUTEI

                                                                                        SHINWASOKUTEI

                                                                                        UNI SEIKI

                                                                                        SHINWASOKUTEI

                                                                                        NIIGATA SEIKI (SK)

                                                                                        NIIGATA SEIKI (SK)

                                                                                        NIIGATA SEIKI (SK)

                                                                                        NIIGATA SEIKI (SK)

                                                                                        NIIGATA SEIKI (SK)

                                                                                        NIIGATA SEIKI (SK)

                                                                                        SHINWASOKUTEI

                                                                                        SHINWASOKUTEI

                                                                                        SHINWASOKUTEI

                                                                                        SHINWASOKUTEI

                                                                                        SHINWASOKUTEI

                                                                                        SHINWASOKUTEI

                                                                                        SHINWASOKUTEI

                                                                                        OHNISHI MFG

                                                                                        OHNISHI MFG

                                                                                        TRUSCO NAKAYAMA

                                                                                        Product Series

                                                                                        Standard Steel Straight Edge Class A (Hardened)

                                                                                        Standard Steel Straight Edge Class A (Not Hardened)

                                                                                        Accurate Cylindrical Square

                                                                                        Precision Cylindrical Square

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

                                                                                        I-beam Shaped Straight Edge

                                                                                        Mini Machinist Square, with Brass Table

                                                                                        TRUSCO NAKAYAMA, Machinist's Square With Base

                                                                                        Flat Square Square Uniseiki

                                                                                        A-shaped Square with Stand JIS Grade 2 (JIS B7526 Standard Product)

                                                                                        Square with Stand JIS Grade 1 Quenched (JIS B7526 Standard Product)

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

                                                                                        Steel Straight Edge (Flat Type / Quenched Product)

                                                                                        With square aluminum stand

                                                                                        One-Handed Scorer, Right Handed

                                                                                        I-Beam Type Straight Edge (A Grade Hardening)

                                                                                        Beveled Straight Edges (Grade A Hardened)

                                                                                        Miter Rule

                                                                                        Steel Straight Edge (Flat Type)

                                                                                        Standard Shape Straight Edge

                                                                                        Standard Shape Straight Edge

                                                                                        Blade-Shaped Straight Edge

                                                                                        Flat Square Non-quenched

                                                                                        Flat Speed Square JIS Grade 1

                                                                                        ibeam straight edge

                                                                                        Set Square with Aluminum Stand, without Scale

                                                                                        Radius Scale

                                                                                        Straight Edge (Ibeam type/quenched product)

                                                                                        Mighty Machinist Square

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

                                                                                        Right Angle Ruler JIS Class 1 Equivalent (Hardened)

                                                                                        One-Handed Scorer, Left Handed

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

                                                                                        Calibrated Square with Stand

                                                                                        Calibrated Flat Type Square

                                                                                        Complete Square

                                                                                        Angle Scribing Square

                                                                                        Trapezoidal Stop Type Ruler

                                                                                        Instant Stop-Type Ruler

                                                                                        Aluminum Sliding Bevel with Angle Scale and Brace

                                                                                        Free Gold without Scale

                                                                                        Free Square without Scale

                                                                                        Angled Ruler (with Stand)

                                                                                        Angled Ruler (Flat Type)

                                                                                        Flat Machinist's Square, TRUSCO NAKAYAMA

                                                                                        Days to Ship 31 Day(s) or more 26 Day(s) or more 10 Day(s) or more 7 Day(s) or more 4 Day(s) or more 7 Day(s) or more 8 Day(s) or more 8 Day(s) 8 Day(s) or more 8 Day(s) or more 6 Day(s) or more 8 Day(s) or more 8 Day(s) 7 Day(s) or more 11 Day(s) or more 36 Day(s) 41 Day(s) 8 Day(s) 8 Day(s) or more 21 Day(s) or more 21 Day(s) or more 4 Day(s) or more 10 Day(s) or more 10 Day(s) or more 10 Day(s) or more 8 Day(s) 8 Day(s) 8 Day(s) or more 8 Day(s) 36 Day(s) 58 Day(s) or more 11 Day(s) or more 58 Day(s) or more 11 Day(s) or more 11 Day(s) or more 8 Day(s) or more 8 Day(s) 8 Day(s) 8 Day(s) 8 Day(s) 8 Day(s) 8 Day(s) 7 Day(s) or more 8 Day(s) 9 Day(s)
                                                                                        Product TypeStraight edgeStraight edgeOtherOtherFlat set squareStraight edgeSquare With StandSquare With StandFlat set squareSquare With StandSquare With StandFlat set squareStraight edgeSquare With StandSquare With StandStraight edgeStraight edgeSquare With StandStraight edgeStraight edgeStraight edgeStraight edgeFlat set squareFlat set squareStraight edgeSquare With StandOtherStraight edgeOtherStraight edgeSquare With StandSquare With StandSquare With StandSquare With StandSquare With StandSquare With StandMiter RuleMiter RuleMiter RuleFree Set SquareFree Set SquareFree Set SquareAngled RulerAngled RulerFlat set square
                                                                                        Pole Length(mm)--100 ~ 500-75 ~ 300-45 ~ 90200 ~ 35075 ~ 100075 ~ 30075 ~ 30075 ~ 300--75 ~ 2000--170----50 ~ 100050 ~ 1000----200 ~ 300-1500 ~ 200075 ~ 2000.2000400 ~ 1000400 ~ 1000161 ~ 177172-----100 ~ 300100 ~ 300100
                                                                                        Accuracy(mm)--------JIS grade 1 (grade 1 ± (10+L/20) µm hardness HS60° or more)---0.0115 ~ 0.02-JIS Grade 2 equivalent products----------0.1 mm or less per 100 mm±0.1 (R gauge) / ±0.05 (diameter gauge) / ±0.15 (ruler)0.005 ~ 0.032--JIS B 7526JIS Grade 2 equivalent productsJIS B 7526JIS Grade 2 equivalent productsJIS Grade 2 equivalent products----------
                                                                                        Angle(°)180180--9018090--909090180-9018018045/90-180180180909018090-180-18090909090909045 ~ 45/9045/9045/9020~120--45 ~ 12045 ~ 120-
                                                                                        Base Length(mm)--ø60 ~ ø130-50 ~ 200-35 ~ 55115 ~ 18050 ~ 55050 ~ 20050 ~ 20050 ~ 200--50 ~ 800--163----38 ~ 55040 ~ 550------600 ~ 80050 ~ 800800200 ~ 550200 ~ 55094115-----73 ~ 30070 ~ 30070
                                                                                        ScaleNANA-NA--NANANA-NANA--NANANAAvailableNA------NAAvailable-AvailableNANANANAAvailableAvailableAvailableAvailable / NAAvailableAvailableAvailableNANANANANA
                                                                                        Calibration Certificate---------------------------------------------

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