CM8X Round Inserts

The CM8 round insert are the most widely used inserts of the CMT product liner. These 3/8" diameter inserts are made in the USA from qulity tool steel.

The CM8X – round inserts are used for indention marking and are held in the stamp recess/holder with spring clip or set screw. Round inserts are frequently used to provide station ID and part tracking QC marks. Round inserts always center the mark in the tool holder.

Columbia Marking Tools CM8X 3/8" Round Inserts

Comprehensive guide for round inserts.

CM8X-Thumb
CM8X00 3/8" Blank Round Insert
$5.52 $4.97 Online Sale!
CM8X00

CM8X1300 Blank Spacer round insert for industrial part marking. 3/8" diam. x 1.25" long [9.5mm diam x 31.7mm long] with a groove for use with spring clip or set screw retention.

1. Quality tool steel

2. Precision tolerances for marking applications

3. Standard heat treat for marking dies


Quantity
CM8X-Thumb
CM8X06 1/16-inch Character 3/8" Round Insert
$8.60 $7.74 Online Sale!
CM8X06

CM8X06 1/6" [1.6mm] Character round insert for industrial part marking. 3/8" diam. x 1.25" long [9.5mm diam x 31.7mm long] with a groove for use with spring clip or set screw retention. Please select the alpha-numeric character required when ordering.

1. Quality tool steel

2. Precision tolerances for marking applications

3. Standard Engraving depth

4. Standard font

5. Sharp Face Character

6. Standard heat treat for marking dies



Please select a number or letter for the character:
Quantity
CM8X-Thumb
CM8X06SYM 1/16-inch Symbol 3/8" Round Insert
$19.18 $17.26 Online Sale!
CM8X06SYM

CM8X06SYM 1/6" [1.6mm] Symbol round insert for industrial part marking. 3/8" diam. x 1.25" long [9.5mm diam x 31.7mm long] with a groove for use with spring clip or set screw retention. Please select the symbol number required when ordering.

Symbol List

1. Quality tool steel

2. Precision tolerances for marking applications

3. Standard Engraving depth

4. Standard font

5. Sharp Face Character

6. Standard heat treat for marking dies



Please select a symbol number
Quantity
CM8X-Thumb
CM8X06DOT 1/16-inch Dot-Style 3/8" Round Insert
$22.05 $19.85 Online Sale!
CM8X06DOT

CM8X06DOT 1/6" [1.6mm] Dot Style Character round insert for industrial part marking. 3/8" diam. x 1.25" long [9.5mm diam x 31.7mm long] with a groove for use with spring clip or set screw retention. Please select the alpha-numeric character required when ordering.

1. Quality tool steel

2. Precision tolerances for marking applications

3. Standard Engraving depth

4. Standard font

5. Dot Style Character

6. Standard heat treat for marking dies



Select a letter or number:
Quantity
CM8X-Thumb
CM8X06C2 1/16-inch 2-Character 3/8" Round Insert
$33.08 $29.77 Online Sale!
CM8X06C2

CM8X06C2 1/6" [1.6mm] 2-Character round insert for industrial part marking. 3/8" diam. x 1.25" long [9.5mm diam x 31.7mm long] with a groove for use with spring clip or set screw retention. Please select the alpha-numeric characters required when ordering.

1. Quality tool steel

2. Precision tolerances for marking applications

3. Standard Engraving depth

4. Standard font

5. Sharp Face Character

6. Standard heat treat for marking dies



Selects the letters or numbers you want:
Quantity
CM8X-Thumb
CM8X09 3/32-inch Stamp 3/8" Round Insert
$7.81 $7.02 Online Sale!
CM8X09

CM8X09 3/32" [2.4mm] Character round insert for industrial part marking. 3/8" diam. x 1.25" long [9.5mm diam x 31.7mm long] with a groove for use with spring clip or set screw retention. Please select the alpha-numeric character required when ordering.

1. Quality tool steel

2. Precision tolerances for marking applications

3. Standard Engraving depth

4. Standard font

5. Sharp Face Character

6. Standard heat treat for marking dies



Please select a number or letter for the character:
Quantity
CM8X-Thumb
CM8X09SYM 3/32-inch Symbol 3/8" Round Insert
$19.18 $17.26 Online Sale!
CM8X09SYM

CM8X09SYM 3/32" [2.4mm] Symbol round insert for industrial part marking. 3/8" diam. x 1.25" long [9.5mm diam x 31.7mm long] with a groove for use with spring clip or set screw retention. Please select the symbol number required when ordering.

Symbol List

1. Quality tool steel

2. Precision tolerances for marking applications

3. Standard Engraving depth

4. Standard font

5. Sharp Face Character

6. Standard heat treat for marking dies



Please select a symbol number
Quantity
CM8X-Thumb
CM8X09C2 3/32-inch 2-Character 3/8" Round Insert
$33.08 $29.77 Online Sale!
CM8X09C2

CM8X09C2 3/32" [2.4mm] 2-Character round insert for industrial part marking. 3/8" diam. x 1.25" long [9.5mm diam x 31.7mm long] with a groove for use with spring clip or set screw retention. Please select the alpha-numeric characters required when ordering.

1. Quality tool steel

2. Precision tolerances for marking applications

3. Standard Engraving depth

4. Standard font

5. Sharp Face Character

6. Standard heat treat for marking dies



Select the letters and numbers you want:
Quantity
CM8X-Thumb
CM8X13 1/8-inch Character 3/8" Round Insert
$7.82 $7.04 Online Sale!
CM8X13

CM8X13 1/8" [3.2mm] Character round insert for industrial part marking. 3/8" diam. x 1.25" long [9.5mm diam x 31.7mm long] with a groove for use with spring clip or set screw retention. Please select the alpha-numeric character required when ordering.

1. Quality tool steel

2. Precision tolerances for marking applications

3. Standard Engraving depth

4. Standard font

5. Sharp Face Character

6. Standard heat treat for marking dies



Please select a number or letter for the character:
Quantity
CM8X-Thumb
CM8X13SYM 1/8-inch Symbol 3/8" Round Insert
$19.18 $17.26 Online Sale!
CM8X13SYM

CM8X13SYM 1/8" [3.2mm] Symbol round insert for industrial part marking. 3/8" diam. x 1.25" long [9.5mm diam x 31.7mm long] with a groove for use with spring clip or set screw retention. Please select the symbol number required when ordering.

1. Quality tool steel

2. Precision tolerances for marking applications

3. Standard Engraving depth

4. Standard font

5. Sharp Face Character

6. Standard heat treat for marking dies



Please select a symbol number
Quantity
CM8X-Thumb
CM8X13DOT 1/8-inch Dot-Style 3/8" Round Insert
$22.05 $19.85 Online Sale!
CM8X13DOT

CM8X13DOT 1/8" [3.2mm] Dot Style Character round insert for industrial part marking. 3/8" diam. x 1.25" long [9.5mm diam x 31.7mm long] with a groove for use with spring clip or set screw retention. Please select the alpha-numeric character required when ordering.

1. Quality tool steel

2. Precision tolerances for marking applications

3. Standard Engraving depth

4. Standard font

5. Dot-Style Character

6. Standard heat treat for marking dies



Select a letter or number:
Quantity
CM8X-Thumb
CM8X13C2 1/8-inch 2-Character 3/8" Round Insert
$33.08 $29.77 Online Sale!
CM8X13C2

CM8X13C2 1/8" [3.2mm] 2-Character round insert for industrial part marking. 3/8" diam. x 1.25" long [9.5mm diam x 31.7mm long] with a groove for use with spring clip or set screw retention. Please select the alpha-numeric characters required when ordering.

1. Quality tool steel

2. Precision tolerances for marking applications

3. Standard Engraving depth

4. Standard font

5. Sharp Face Character

6. Standard heat treat for marking dies



Please select a number or letter for the character:
Quantity
CM8X-Thumb
CM8X19 3/16-inch Character 3/8" Round Insert
$8.60 $7.74 Online Sale!
CM8X19

CM8X19 3/16" [4.8mm] Character round insert for industrial part marking. 3/8" diam. x 1.25" long [9.5mm diam x 31.7mm long] with a groove for use with spring clip or set screw retention. Please select the alpha-numeric character required when ordering.

1. Quality tool steel

2. Precision tolerances for marking applications

3. Standard Engraving depth

4. Standard font

5. Sharp Face Character

6. Standard heat treat for marking dies



Please select a number or letter for the character:
Quantity
CM8X-Thumb
CM8X19SYM 3/16-inch Symbol 3/8" Round Insert
$19.18 $17.26 Online Sale!
CM8X19SYM

CM8X19SYM 3/16" [4.8mm] Symbol round insert for industrial part marking. 3/8" diam. x 1.25" long [9.5mm diam x 31.7mm long] with a groove for use with spring clip or set screw retention. Please select the symbol number required when ordering.

Symbol List

1. Quality tool steel

2. Precision tolerances for marking applications

3. Standard Engraving depth

4. Standard font

5. Sharp Face Character

6. Standard heat treat for marking dies



Please select a symbol number
Quantity
CM8X-Thumb
CM8X19PUN 3/16-inch Punctuation 3/8" Round Insert
$19.18 $17.26 Online Sale!
CM8X19PUN

CM8X19PUN 3/16" [4.8mm] Punctuation round insert for industrial part marking. 3/8" diam. x 1.25" long [9.5mm diam x 31.7mm long] with a groove for use with spring clip or set screw retention. Please select the punctuation required when ordering.

Punctuation List

1. Quality tool steel

2. Precision tolerances for marking applications

3. Standard Engraving depth

4. Standard font

5. Sharp Face Character

6. Standard heat treat for marking dies



Please selection punctuation required
Quantity
CM8X-Thumb
CM8X19C2 3/16-inch 2-Character 3/8" Round Insert
$33.08 $29.77 Online Sale!
CM8X19C2

CM8X19C2 3/16" [4.8mm] 2-Character round insert for industrial part marking. 3/8" diam. x 1.25" long [9.5mm diam x 31.7mm long] with a groove for use with spring clip or set screw retention. Please select the alpha-numeric characters required when ordering.

1. Quality tool steel

2. Precision tolerances for marking applications

3. Standard Engraving depth

4. Standard font

5. Sharp Face Character

6. Standard heat treat for marking dies



Please select a number or letter for each of the characters:
Quantity
CM8X-Thumb
CM8X25 1/4-inch Character 3/8" Round Insert
$9.12 $8.21 Online Sale!
CM8X25

CM8X25 1/4" [6.3mm] Character round insert for industrial part marking. 3/8" diam. x 1.25" long [9.5mm diam x 31.7mm long] with a groove for use with spring clip or set screw retention. Please select the alpha-numeric character required when ordering.

1. Quality tool steel

2. Precision tolerances for marking applications

3. Standard Engraving depth

4. Standard font

5. Sharp Face Character

6. Standard heat treat for marking dies



Please select a number or letter for the character:
Quantity
CM8X-Thumb
CM8X25SYM 1/4-Inch Symbol 3/8" Round Insert
$20.51 $18.46 Online Sale!
CM8X25SYM

CM8X25SYM 1/4" [6.3mm] Symbol round insert for industrial part marking. 3/8" diam. x 1.25" long [9.5mm diam x 31.7mm long] with a groove for use with spring clip or set screw retention. Please select the symbol number required when ordering.

Symbol List

1. Quality tool steel

2. Precision tolerances for marking applications

3. Standard Engraving depth

4. Standard font

5. Sharp Face Character

6. Standard heat treat for marking dies



Please select a symbol number
Quantity
CM-Punch
CM8XPXX Prick Punch 3/8" Round Insert
$27.57 $24.81 Online Sale!
CM8XPXX

CM8X25PXX Prick Punch 3/8" [9.5mm] round insert for industrial part marking. 3/8" diam. x 1.25" long [9.5mm diam x 31.7mm long] with a groove for use with spring clip or set screw retention. Please select the the angle of the punch required when ordering.

1. Quality tool steel

2. Precision tolerances for marking applications

3. Standard heat treat for marking dies



Select the included angle required for the Prick Punch
Quantity