Tolerance Charts 
Description 

This Standard defines preferred limits and fits for press fits applications of nonthreaded cylindrical features 

This Calculator will determine the preferred size and limit tolerances for Running or sliding to interferencelocational fits per ANSI B 4.1. 

This Calculator will determine the preferred size and limit tolerances for a force or shrink fit per ANSI B 4.1. 

This calculator will determine a variety of force, stress and other design parameters for press fit applications. 

Positional & Limits of Size 

International
Tolerance Grade Chart 

Metric Mechanical Tolerance Preferred Size Data 

Plus and minus tolerance for the specific ISO 286 hole tolerance data. 

Plus and minus tolerance for the specific ISO 286 Shaft tolerance data. 

The following are general geometrical tolerances per. ISO 2768 for the following: Linear Dimensions, External Radius and Chamfer Heights, Straightness and Flatness, Perpendicularity, Symmetry, Runout 

Slip & Press fit design tolerances for ANSI size dowel pins. 

Hole  Fastener Fits for ANSI Hex Head Blots and Screws. 

Hole  Fastener Fits 

General Tolerances Shaft  Holes Fits
Tolerance classes per ANSI ASME B4.1

Fixed & Rotating, Class I, II, III, IV, V 

Hole  Fastener MEchanical Tolerance Fits Chart 

Drill and Counterbore Sizes for Socket Head Cap Screws per. ASME B18.3 

Dimensions of Go and No Go Gages for Spline Sockets per. ASME B18.3 

Dimensions of Go and No go Gages for Hexagon Sockets per. ASME B18.3 

Drilled hole mechanical tolerance capabilities data. 

This calculator will determine the gage class and tolerance per ANSI ASME B89.1.5 for cylindrical I.D and O.D. gauges. 

During the rolling process the rollers bow slightly, which results in the sheet metal being thinner on the edges. 

Accuracy Specification of Gauge Blocks by JIS B 75061997 Japan Specification. 

Accuracy Specification for Gauge Blocks by BS 4311: Part 1: 1993 (UK) standard at 20??C. 

The following table gives the Accuracy Specifications for Gage Blocks by ASME B89.1.9 (USA) at 20??C. 

This table defines Ring gage and Master Disc mechanical tolerances per B89.1.51998 (R2009) 

Table of tolerances for gauge blocks according to DIN 861, corresponds with ISO 3650 and SS 3348). 

Gauge block calibration, application and history  143 pages developed by industry standards organization NIST 
Onsite GD&T Training per ASME Y14.52009 and ISO 1101
Our trainer is certified per. ASME Y14.5 at the senior level GDTP

GD&T and Mechanical Tolerancing Books Related  Online 
Geometric Boundaries II, GD&T per. ASME Y 14.52009 
Interpretation and Application of ASME Y14.52009 GD&T 
Geometric Boundaries Workbook Answers 
Access to Geometric Boundaries Workbook Questions 

Geometric Boundaries, Interpretation and Application of GD&T per. ASME Y14.5M1994 

Geometrical Boundaries, Interpretation and Application of G&T per. ISO 1101 
Geometric Metrology per. ASME Y14.52009 
Dimensional Tolerances Inspection & Practices in Manufacturing Fundamentals 
Limited Dimension Drawings LDD, Critical Feature Drawings 
Presentation and research for Limited Dimension Drawings LDD, Critical Feature Drawings 
Differences Between ASME Y14.52009 and ISO 1101 Geometric Dimensioning and Tolerancing 
Quick Guide to differences Between ASME Y14.52009 and ISO 1101 Geometric Dimensioning and Tolerancing 

Gauge block calibration is one of the oldest high precision calibrations made in dimensional
metrology. Since their invention at the turn of the century gauge blocks have been the major
source of length standardization for industry. In most measurements of such enduring 

Overview of changes to the ASME Standard 
GD&T Training Videos and Related Dimensioning and Tolerancing Applications 

This tool will assist in design and selection of the correct geometric tolerances GD&T per ASME Y14.52009 

100 % interchangability and Six Sigma assembly and part tolerance analysis calculator. 

Hole MMC Maximum Material Condition Tolerance Chart Calculator per .ASME Y14.52009, ASME Y14.5M  1994, or ISO 1101 Geometric Dimensioning and Tolerancing (GD&T). 

Shaft Diameter MMC Maximum Material Condition Tolerance Chart Calculator 

GD&T and related training videos 

This video illustrates a parallelism application on an ascast box requiring post machining. GD&T training 

When RMB is applied to a geometric tolerance to multiple datum features of size to establish a single datum element(s), the datum feature simulator for each feature shall be at a fixed location and orientation relative to each other 

This GD&T Training video shows a design where the requirements are that a minimum position tolerance applies at the nominal size. As the feature of size diverges either towards LMS or MMC, the position tolerance is specified to increase from the nominal position tolerance. 

This application video explores a couple of GD&T methods to refine the orientation of two hole features for a piston connecting rod. 

GD&T Perpendicularity of Hole Application. Perpendicularity is the condition of a surface, axis, or line, which is 90 deg. from a datum plane or a datum axis. 

GD&T Cylindricity Engine Piston Bore Application. Cylindricity describes a condition of a surface of revolution in which all points of a surface are equidistant from a common axis. 

Circularity describes the condition on a surface of revolution (cylinder, cone, or sphere) where all points of the surface intersected
by any plane are... more 
Straightness of Surface GD&T Training Application Video 
This video illustrates a Straightness of Surface Application on a cam follower wheel. 

Flatness Gasket Application  This video discusses how to determine the right Flatness tolerance when a gasket is used between surfaces. GD&T Training 

Straightness of Axis Application  This video discusses how to determine the right straightness tolerance when the outer and inner tolerance boundaries are known. 
GD&T Related Tolerance Calculators, Tools,
Geometric Dimensioning Tolerancing Training Calculators 

PLTZF tolerance applied at MMC , FRTZF tolerance applied at MMC, All dimensional unit applied with uniform units  all inches, mm, m, etc. , Datum applied at RFS, FRTZF datum is perpendicular to features , X and Y measurements taken with datum's established


GD&T Composite Position Tolerance Calculator for Dimensional Inspection: External Feature of Size  post, tab, pipe, etc.. 

This calculator calculates the asmeasured Concentricity per. ASME Y14.5  2009, Dimensioning and Tolerancing Standard, also know as Geometric Dimensioning and Tolerancing (GD&T). 

This calculator will determine the unknown variable of a floating fastener design condition using ASME Y14.5  2009 and ISO 1101 and derivative GD&T standards. 

This calculator calculates fixed fastener position tolerances utilizing principles and concepts within ASMEY14.52009 and ASME Y14.5M  1994, Geometric Dimensioning and Tolerancing (GD&T). 

This tolerance calculator will calculate the required field compensating for the effects of the fastener projection. Calculations assume a lineline case at tolerance and featureofsize maximum departure. Calculations are compliant with geometric dimensioning and tolerancing standards. 

This calculator will calculate the position tolerances for two coaxial mating diameters. 

This calculator will calculate the position tolerances for three coaxial mating diameters. 

This calculator will convert coordinate measurements to position tolerances. Two inputs are required to determine the Geometric Tolerance. 

This calculator will convert coordinate measurements to position tolerances for spherical applications. Three inputs are required. 

This engineering calculator will determine the true and allowed position tolerance and graph the resulting data points. 

For bolt circles that are too large to measure using typical methods or the measuring tools. Measuring or determining distances for a bolt circle geometry can be facilitated using the following equations and methods. 

This calculator will determine the
even number of holes within a bolt circle. 

Even Number of Holes Within Circle #2: To measure or determine the unknown distance "c" over adjacent hole or pins (largest gage pins that can fit into holes) within a bolt circle of holes (n or number of bolts holes must be even and greater than 4) 

Odd Number of Holes in Circle : To measure the unknown distance x over semiopposite holes using pins (largest gage pins that can fit into holes) and the number of holes n is odd and greater than 3, and the distance c between adjacent holes (pins) is known 

This calculator will determine a bolt circle pattern and X Y coordinates as well as plot data. Bolt circle can be rotated as well. 

This calculator will determine the Standard Deviation from a know set of measurements. 