Tolerances–Aluminum Bars Machining Guide for High-Speed Tooling Cold Finished 2011-T3 2011-T8 AND 2111-T8 6262-T8/T9 6262-T651/T6511 Aluminum Alloys CF Squares, Hexagons, Octagons Tolerance – in. plus and minus except as noted Box Tools, Knee and Hollow Mills SINGLE SPINDLE 600 TO 1100 DEPENDING ON SHAPE; ROUND, HEX, OR SQUARE SINGLE SPINDLE SINGLE SPINDLE SINGLE SPINDLE Twist Drilling Standard and Fast Spiral Half Round Drilling SINGLE SPINDLE LESS THAN 1 INCH 600 SINGLE SPINDLE DIAMETER INCHES Taper Reaming Specified Distance Across Flats (in.) Allowable Deviation from Specified Diameter cold finished rod Tolerance in. plus and minus ALLOWABLE DEVIATION FROM DISTANCE SPECIFIED ACROSSS FLATS Tolerance Thickness Width Extruded Rounds, Hexagons, Squares & Flats Rounds Size DISTANCE ACROSS FLATS Hexagons Tolerance Squares & Flats These tolerances are closer than Aluminum Association Standards. Check with your Castle Metals representative for actual tolerances as these are for reference purposes only. CALL 800.BUY.CSTL (289-2785) FOR THE CASTLE LOCATION NEAR YOU The information in this quik guide is correct to the best of our knowledge. A. M. Castle & Co. assumes no responsibility for errors or omissions. A. M. Castle & Co. publishes this quik guide for guidance of their customers and reserves the right to add or delete items without notificati

Aluminum Cold Finished & Extruded Rod & Bar Like 2011, this is a general purpose screw machine alloy. Higher strength than 2011-T3. Good machinability and machined surface finish capability. A highstrength material of adequate workability. Has largely superseded 2017 for structural applications. Comparable strength to some mild steels. Cutoff Turret Knurling 1 ⁄4 Inch Width Knurl Double All Feeds for Knurl Back Off Cross Slide Knurling 1⁄4 Inch Width Knurl STOCK DIAMETER INCHES 1 11⁄4 STOCK DIAMETER INCHES 9 Pitch + Coarser 9 to 14 Pitch 14 to 18 Pitch 18 Pitch + Finer SINGLE SPINDLE SINGLE SPINDLE...

Tolerances–Aluminum Bars Machining Guide for High-Speed Tooling Cold Finished 2011-T3 2011-T8 AND 2111-T8 6262-T8/T9 6262-T651/T6511 Aluminum Alloys CF Squares, Hexagons, Octagons Tolerance – in. plus and minus except as noted Box Tools, Knee and Hollow Mills SINGLE SPINDLE 600 TO 1100 DEPENDING ON SHAPE; ROUND, HEX, OR SQUARE SINGLE SPINDLE SINGLE SPINDLE SINGLE SPINDLE Twist Drilling Standard and Fast Spiral Half Round Drilling SINGLE SPINDLE LESS THAN 1 INCH 600 SINGLE SPINDLE DIAMETER INCHES Taper Reaming Specified Distance Across Flats (in.) Allowable Deviation from Specified Diameter cold...

Aluminum Cold Finished & Extruded Rod & Bar Like 2011, this is a general purpose screw machine alloy. Higher strength than 2011-T3. Good machinability and machined surface finish capability. A highstrength material of adequate workability. Has largely superseded 2017 for structural applications. Comparable strength to some mild steels. Cutoff Turret Knurling 1 ⁄4 Inch Width Knurl Double All Feeds for Knurl Back Off Cross Slide Knurling 1⁄4 Inch Width Knurl STOCK DIAMETER INCHES 1 11⁄4 STOCK DIAMETER INCHES 9 Pitch + Coarser 9 to 14 Pitch 14 to 18 Pitch 18 Pitch + Finer SINGLE SPINDLE SINGLE SPINDLE...

Aluminum Cold Finished & Extruded Rod & Bar Like 2011, this is a general purpose screw machine alloy. Higher strength than 2011-T3. Good machinability and machined surface finish capability. A highstrength material of adequate workability. Has largely superseded 2017 for structural applications. Comparable strength to some mild steels. Cutoff Turret Knurling 1 ⁄4 Inch Width Knurl Double All Feeds for Knurl Back Off Cross Slide Knurling 1⁄4 Inch Width Knurl STOCK DIAMETER INCHES 1 11⁄4 STOCK DIAMETER INCHES 9 Pitch + Coarser 9 to 14 Pitch 14 to 18 Pitch 18 Pitch + Finer SINGLE SPINDLE SINGLE SPINDLE...

Tolerances–Aluminum Bars Machining Guide for High-Speed Tooling Cold Finished 2011-T3 2011-T8 AND 2111-T8 6262-T8/T9 6262-T651/T6511 Aluminum Alloys CF Squares, Hexagons, Octagons Tolerance – in. plus and minus except as noted Box Tools, Knee and Hollow Mills SINGLE SPINDLE 600 TO 1100 DEPENDING ON SHAPE; ROUND, HEX, OR SQUARE SINGLE SPINDLE SINGLE SPINDLE SINGLE SPINDLE Twist Drilling Standard and Fast Spiral Half Round Drilling SINGLE SPINDLE LESS THAN 1 INCH 600 SINGLE SPINDLE DIAMETER INCHES Taper Reaming Specified Distance Across Flats (in.) Allowable Deviation from Specified Diameter cold...