A Square Gage Block can retain stable orientation both longitudinally and laterally. A wide range of application measurements can be made, including cutting tool positioning, angle measurement with a sine bar, taper measurement with a roller, and inspection of depth micrometers.

Set Includes:

1 pc. 1.0005mm block;
9 pcs. 1.001–1.009mm blocksStep of 0.001mm;
49 pcs. 1.01–1.49mm blocksStep of 0.01mm;
49 pcs. 0.5–24.5mm blocks Step of 0.5mm;
4 pcs. 25–100mm blocks Step of 25mm

A Square Gage Block can retain stable orientation both longitudinally and laterally. A wide range of application measurements can be made, including cutting tool positioning, angle measurement with a sine bar, taper measurement with a roller, and inspection of depth micrometers.

Sets Includes:

81 Piece Set
1 pc. 0.050 block
10 pcs. 0.1000–0.1009 blocks Step of 0.0001
49 pcs. 0.101–0.149 blocks Step of .001
17 pcs. 0.15–0.95 blocks Step of 0.05
4 pcs. 1–4 blocks Step of 1

28 Piece Set
1 pc. 0.02005 block
9 pcs. 0.0201–0.0209 blocks Step of 0.0001 blocks
9 pcs. 0.021–0.029 blocks Step of 0.001 blocks
9 pcs. 0.010–0.090 blocks Step of 0.01 blocks

36 Piece Set
1 pc. 0.050 block
10 pcs. 0.1000–0.1009 blocks Step of 0.0001
9 pcs. 0.101–0.109 blocks Step of 0.001
9 pcs. 0.11–0.19 blocks Step of 0.01
4 pcs. 0.2–0.5 Step of 0.1 3 pcs. 1, 2, and 4 blocks

A Square Gage Block can retain stable orientation both longitudinally and laterally. A wide range of application measurements can be made, including cutting tool positioning, angle measurement with a sine bar, taper measurement with a roller, and inspection of depth micrometers.

Set Includes:

5, 6, 7, 8, 10, 12, 16, 20 inch blocks

** CERA blocks are adopted for frequently-used blocks.
81-block set: All are CERA blocks. Except 2”, 3”, and 4” are Steel blocks
49-block set: .05, .1, .15, .2, .3, .5, 1, 2”
35-block set: .1, .15, .2, .3, .5, 1, 2”

Sets Includes:

81 Piece Set
9 Blocks =.1001-.1009 Step=.0001
49 Blocks =.101-.149 Step=.001
19 Blocks =.05-.95 Step=.05
4 Blocks =1-4-100 Step=1

35 Piece Set
1 Block =.10005 Step=
9 Blocks =.1001-.1009 Step=.0001
9 Blocks =.101-.109 Step=.001
9 Blocks =.11-.19 Step=.01
3 Blocks=.1-.3 Step=.1
4 Blocks=.5,1,2,4

** CERA blocks are adopted for frequently-used blocks.
81-block set: All are CERA blocks. Except 2”, 3”, and 4” are Steel blocks
49-block set: .05, .1, .15, .2, .3, .5, 1, 2”
35-block set: .1, .15, .2, .3, .5, 1, 2”

Set Includes:

8 Blocks=1-8 Step=1

WESTport is pleased to offer Fowler Zirconia Ceramic Gage Block sets.
Available in 36 & 81 pieces and three grades, these NIST traceable rectangular sets are constructed of high grade Zirconia Ceramic, lapped to micro-inch finish and very competitively priced with standard steel gage block sets…

• Corrosion resistant, abrasion proof
• coefficient of expansion (2 x 10-6/C°)
• Sizes clearly etched on each block
• Each gage block individually serialized
• NIST Traceable calibration certificate
• Includes Deluxe custom fitted case
• Available in grades B, 2 & 3
• Priced competitive to steel sets!

Sets Includes:

36 pcs. in wood case. Consists of:
9 Blocks .1001" thru .1009" step of .0001"
9 Blocks .101" thru .109" step of .001"
9 Blocks .110" thru .190" step of .01"
5 Blocks .100" thru .500" step of .1"
3 Blocks 1", 2", 4"
1 Block .050"

81 pcs. in wood case. Consists of:
9 Blocks .1001" thru .1009" step of .0001"
49 Blocks .101" thru .149" step of .001"
19 Blocks .050" thru .950" step of .050"
4 Blocks 1.000" thru 4.000" step of 1.000"

Fowler's Square Ceramic Gage Block Sets are manufactured to the same high precision as our rectangular sets. Zirconia Ceramic Gage Blocks are available in 36 and 81 piece sets and in two grades. Square in shape, they are constructed of high grade zirconia ceramic, lapped for high accuracy… and very competitively priced with steel gage blocks.

• Ceramic Gage Blocks resist corrosion and defacement and require no protective coating.
• Blocks feature a coefficient of expansion only 2 x 10-6/C° different than steel blocks. They are carefully inspected for accurate size, tolerance, length and flatness.
• Sizes are clearly etched on each block.
• Each set includes Certificate of Inspection traceable to the National Institute of Standards and Technology and a deluxe case.
• Calibrated to Fowler specifications which meet or exceed ASME B89.1.9-2002.

Sets Includes:

36 pcs. in wood case. Consists of:
1 Block .050"
9 Blocks .1001" thru .1009" step of .0001"
9 Blocks .101" thru .109" step of .001"
9 Blocks .110" thru .190" step of .01"
5 Blocks .100", .200", .300", 400" and .500"
3 Blocks 1.000", 2.000" and 4.000"

81 pcs. in wood case. Consists of:
9 Blocks .1001" thru .1009" step of .0001"
49 Blocks .101" thru .149" step of .001"
19 Blocks .050" thru .950" step of .050"
4 Blocks 1.000" thru 4.000" step of 1.000"

Carbide Rectangular Gage Block Sets are traceable to the National Institute of Standards and Technology.

Special Features:
• Fowler Tungsten Carbide Rectangular and Square Gage Block Sets are selected for stability, durability and fine grain structure with a hardness of 70 RC. With this metal, a surface finish of less than .2 millionths (.005 microns) is ensured and gives maximum wringability which is appreciated by users of steel and chromium carbide gages.
• The surface finish process removes all peaks, leaving a 100% surface resistant to wear, ensuring long life within the original accuracy tolerance and retained wringability.
• Edges of gaging faces are reinforced for a smooth radius.
• Certificates of accuracy are furnished as standard with sets to the following grade: ASME B89.1.9-2002
• Tungsten carbide resists high corrosion, making it ideal for continuous handling. It is also slow to react to "hot hands" with a low coefficient of expansion.
• Inch surface finish .2 millionths; metric surface finish is .005 microns.
• Includes fitted case.

Sets Includes:

82 pcs. in wood case. Consists of:
9 Blocks .1001" thru .1009" step of .0001"
49 Blocks .101" thru .149" step of .001"
19 Blocks .050" thru .950" step of .050"
4 Blocks 1.000" thru 4.000" step of 1.000"
1 Block .10005"

36 pcs. in wood case. Consists of:
1 Block .1005"
9 Blocks .1001" thru .1009" step of .0001"
9 Blocks .101" thru .109" step of .001"
9 Blocks .110" thru .190" step of .01"
4 Blocks .100", .200", .300" and .500"
3 Blocks 1.000", 2.000", 4.000"
1 Block .10005"

Fowler Square Steel Gage Block Sets are manufactured to the same high precision and from the same special steel used in our rectangular sets and conform to ASME B89.1.9-2002

Special Features:
• Sets supplied with certificate of inspection showing deviation for each block.
• All Gage Block Sets include certifications of calibration
traceable to the National Institute of Standards and Technology.
• Gage Block Sets are made to special standards to resist corrosion & defacement and are coated when calibrated at the time of final inspection for protection from moisture and foreign matter.
• Surface finish .4 millionths.
• Includes fitted case.

Sets Includes:

81 pcs. in wood case. Consists of:
9 Blocks .1001" thru .1009" step of .0001"
49 Blocks .101" thru .149" step of .001"
19 Blocks .050" thru .950" step of .050"
4 Blocks 1.000" thru 4.000" step of 1.000"

36 pcs. in wood case. Consists of:
1 Block .050"
9 Blocks .1001" thru .1009" step of .0001"
9 Blocks .101" thru .109" step of .001"
9 Blocks .110" thru .190" step of .01"
5 Blocks .100", .200", .300", .400" and .500"
3 Blocks 1.000", 2.000" and 4.000"

Special Features—No. 53-670 Series:
• Each block is rectangular steel and hardened to 65RC, stress relieved, lapped to accurate size, parallelism and flatness, then carefully inspected and marked for size; designed to meet close tolerances.
• Each set includes standard sizes found in more expensive sets. Each block individually serialized; conforms to rigid standards of the National Institute of Standards & Technology.
• Price includes fitted wood case.

Sets Includes:

36 pcs. in wood case. Consists of:
9 Blocks .1001" thru .1009" steps of .0001" 9 Blocks .101" thru .109" steps of .001"
9 Blocks .110" thru .190" steps of .010"
5 Blocks .100" thru .500" steps of .100"
3 Blocks 1", 2", 4"
1 Block .050"

81 pcs. in wood case. Consists of:
9 Blocks .1001" thru .1009" steps of .0001"
49 Blocks .101" thru .149" steps of .001"
19 Blocks .050" thru .950" steps of .05"
4 Blocks 1.000" thru 4.000" steps of 1.000"

103 pcs. in wood case. Consists of:
49 Blocks 1.01mm thru 1.49mm steps of .01mm
49 Blocks 0.5mm thru 24.5mm steps of 0.5mm
4 Blocks 25mm thru 100mm steps of 25mm
1 Block 1.005mm

87 pcs. in wood case. Consists of:
2 Blocks .0.5mm to 1.00mm
9 Blocks 1.001mm thru 1.009mm in steps of .001mm
50 Blocks 1.01mm thru 1.50mm in steps of .01mm
17 Blocks 2mm thru 10mm in steps of .5mm
9 Blocks 20mm thru 100mm in steps of 10mm

47 pcs. in wood case. Consists of:
19 Blocks 1.01 thru 1.19mm steps of .01mm
8 Blocks 1.2 thru 1.9mm steps of .1mm
10 Blocks 1 thru 10mm steps of 1mm
9 Blocks 20 thru 100mm steps of 10mm
1 Block 1.005mm

An economy version of our deluxe Fowler Gage Block Sets, featuring ±.000050" (fifty millionths) accuracy and a very significant price savings.
Fowler "Economy/Workshop" grade Gage Block Sets are identical to our standard sets in all respects, except for the wider range of tolerance which is more than adequate for a majority of shop needs. Blocks are rectangular, constructed of the finest grade of high carbon/chrome steel, fully stress relieved, hardened to 65 RC, lapped and mirror polished to a very low micro-surface finish. Blocks feature a low coefficient of thermal expansion, and they are carefully
inspected for accurate size, parallelism and flatness.

Special Features:
• ±.000050" accuracy for a lower price, each department can now have their own set.
• Standard industrial sizes ensure complete interchangeability with all accessories.
• Each set complete with deluxe fitted case and Certificate of Inspection traceable to the National Institute of Standards & Technology.

Set Includes:

36 pcs. in wood case. Consists of:
9 Blocks .1001" thru .1009" step of .0001"
9 Blocks .101" thru .109" step of .001"
9 Blocks .110" thru .190" step of .01"
5 Blocks .100" thru .500" step of .1"
3 Blocks 1", 2", 4"
1 Block .050"

81 pcs. in wood case. Consists of:
9 Blocks .1001" thru .1009" step of .0001"
49 Blocks .101" thru .149" step of .001"
19 Blocks .050" thru .950" step of .050"
4 Blocks 1.000" thru 4.000" step of 1.000"

Fowler's long gage blocks are rectangular in shape, Grade Ø and supplied with NIST certificate
Specifications: tolerance in microinches.

Set Includes:

8 pcs. in wood case. Consists of:
5" Gage block
6" Gage block
7" Gage block
8" Gage block
10" Gage block
12" Gage block
16" Gage block
20" Gage block

Premium Rectangular and Square Steel Gage Blocks are available in grade ØØ and grade Ø. Accessories are also available that expand the versatility and applications
for gage blocks even further.
Every set of 34 pieces or larger comes with a FREE maintenance kit which includes gage block cleaner, gage block preservative and a block of lint-free wiping tissues. Certified Accuracy…all gage blocks carry National Institute of Standards and Technology traceability certification furnished free with each set and individual blocks. They comply with ASME B89.1.9-2002 and every block receives 6 individual inspections to assure parallelism, flatness, and size within Federal Specifications for its grade. Separate certification listing the actual gage block size deviation from nominal size is also provided free with all sets.
Dimensional Stability…A special process of sub-zero-to-tempering-heat stabilizing cycles imparts near-permanent
size.
Superior Wearability…Stabilized chromium steel (52100) goes into all gage blocks. Stress relieved and heat treated to a uniform high 66 RC hardness assures superior wear life and linear co-efficient of expansion nearly identical to parts made of steel.
Steel Gage Block Sets—Inch— with 81 Pieces is comprised of the four basic increment series: .0001, .001, .050 and 1.000". This set meets the general all-around gaging requirements of most plants.…makes over 120,000 different measurements. A 92 compartment case will accommodate additional blocks as needed. The set would become more flexible with the addition of wear blocks especially when used by more than one inspector. Individual serial numbers for ease in identification.
Steel Gage Block Sets—Inch— with 34 Pieces provide block combinations to make over 80,000 measurements. A utility set that makes an ideal companion to other sets of blocks. Used by individuals, toolmakers or inspectors who have access to larger sets.

Set Includes:

81 pcs. in wood case. Consists of:
9 Blocks .1001" thru .1009" step of .0001"
49 Blocks .101" thru .149" step of .001"
19 Blocks .050" thru .950" step of .050"
4 Blocks 1.000" thru 4.000" step of 1.000"

34 pcs. in wood case. Consists of:
9 Blocks .1001" thru .1009" step of .0001"
9 Blocks .101" thru .109" step of .001"
9 Blocks .110" thru .190" step of .010"
4 Blocks .100", .200", .300" and .500" step of .100"
3 Blocks 1.000", 2.000", 4.000" step of 1.000"

Premium Rectangular and Square Steel Gage Blocks are available in grade ØØ and grade Ø. Accessories are also available that expand the versatility and applications
for gage blocks even further.
Every set of 34 pieces or larger comes with a FREE maintenance kit which includes gage block cleaner, gage block preservative and a block of lint-free wiping tissues. Certified Accuracy…all gage blocks carry National Institute of Standards and Technology traceability certification furnished free with each set and individual blocks. They comply with ASME B89.1.9-2002 and every block receives 6 individual inspections to assure parallelism, flatness, and size within Federal Specifications for its grade. Separate certification listing the actual gage block size deviation from nominal size is also provided free with all sets.
Dimensional Stability…A special process of sub-zero-to-tempering-heat stabilizing cycles imparts near-permanent
size.
Superior Wearability…Stabilized chromium steel (52100) goes into all gage blocks. Stress relieved and heat treated to a uniform high 66 RC hardness assures superior wear life and linear co-efficient of expansion nearly identical to parts made of steel.
Steel Gage Block Sets—Inch— with 81 Pieces is comprised of the four basic increment series: .0001, .001, .050 and 1.000". This set meets the general all-around gaging requirements of most plants.…makes over 120,000 different measurements. A 92 compartment case will accommodate additional blocks as needed. The set would become more flexible with the addition of wear blocks especially when used by more than one inspector. Individual serial numbers for ease in identification.
Steel Gage Block Sets—Inch— with 34 Pieces provide block combinations to make over 80,000 measurements. A utility set that makes an ideal companion to other sets of blocks. Used by individuals, toolmakers or inspectors who have access to larger sets.

Set Includes:

81 pcs. in wood case. Consists of:
9 Blocks .1001" thru .1009" step of .0001"
49 Blocks .101" thru .149" step of .001"
19 Blocks .050" thru .950" step of .050"
4 Blocks 1.000" thru 4.000" step of 1.000"

34 pcs. in wood case. Consists of:
9 Blocks .1001" thru .1009" step of .0001"
9 Blocks .101" thru .109" step of .001"
9 Blocks .110" thru .190" step of .010"
4 Blocks .100", .200", .300" and .500" step of .100"
3 Blocks 1.000", 2.000", 4.000" step of 1.000"

Individual Steel Gage Blocks are rectangular in shape, Grade Ø and traceable to the National Institute of Standards and Technology. Includes NIST Certificate.

All Fowler Individual Square Steel Gage Blocks are Grade Ø and traceable to the National Institute of Standards and Technology.