Milling Cutters:

High Speed Steel Screwed Shank Slot Drills

High Speed Steel
Screwed Shank Slot Drills
For Auto lock Clarkson chucks
High Speed Steel Screwed Shank Slot Drills

 Standard Series 

Diameter

Cutting Edge Length

Eff. Length below Chuck

Overall Length

Shank Diameter
1/8 5/16 7/16 1.15/16  
5/32 3/8 9/16 2.1/16  
3/16 3/8 9/16 2.1/16 1/4
7/32 7/16 5/8 2.1/16  
1/4 7/16 5/8    
9/32 7/16 3/4 2.1/4  
5/16 1/2 3/4 2.1/4  
11/32 9/16 3/4 2.1/4 3/8
3/8 9/16 3/4 2.1/4  
13/32 5/8 3/4 2.1/4  
7/16 11/16 15/16 2.7/16  
15/32 11/16 15/16 2.7/16  
1/2 13/16 1 2.1/2 1/2
9/116 7/8 1.1/16 2.9/16  
5/8 1 1.3/8 2.11/16  
11/16 1.1/16 1.1/4 2.3/4 5/8
3/4 1.1/8 1.3/8 2.7/8  
13/16 1.1/8 1.3/8 3.3/16  
7/8 1.3/16 1.7/16 3.3/16 3/4
15/16 1.3/16 1.7/16 3.3/8  
1 1.3/8 1.1/2 3.5/8  
1.1/16 1.3/8 1.1/2 3.5/8  
1.1/8 1.7/16 1.9/16 3.11/16  
1.3/16 1.7/16 1.9/16 3.11/16 1
1.1/4 1.9/16 1.11/16 3.13/16  

Long Series 

Diameter

Cutting Edge Length

Eff. Length below Chuck

Overall Length

Shank Diameter
1/8 7/16 1 2.1/2  
5/32 1/2 1.1/4 2.3/4  
3/16 1/2 1.1/4 2.3/4 1/4
7/32 5/8 1.1/2 3  
1/4 5/8 1.1/2 3  
9/32 5/8 1.1/2 3  
5/16 3/4 1.5/8 3.1/8  
11/32 3/4 1.5/8 3.1/8  
11/32 7/8 1.3/4 3.1/4 3/8
3/8 7/8 13/4 3.1/4  
13/32 7/8 2 3.1/2  
7/16 7/8 2 3.1/2  
15/32 1 2.1/4 3.1/4 1/2
1/2 1 2.1/4 3.1/4  
9/16 1.1/8 2.1/2 4  
5/8 1.1/4 2.3/4 4.1/4  
11/16 1.3/8 3 4.1/2 5/8
3/4 1.1/2 3.1/4 4.3/4  
13/16 1.1/2 3.3/8 5.1/2  
7/8 1.5//8 3.3/8 5.1/2 3/4
15/16 1.5/8 3.7/8 6  
1 1.3/4 4.1/8 6.1/4  
1.1/6 1.3/4 4.1/8 6.1/4  
1.1/8 1.7/8 4.1/8 6.1/4  
1.3/16 2 4.1/8 6.1/4  
1.1/4 2 4.1/8 6.1/4 1
1.5/16 2 4.1/8 6.1/4  
1.3/8 2.1/8 4..1/8 6.1/4  
1.7/16 2.1/8 4.1/8 6.1/4  
1.1/2 2.1/4 4.1/8 6.1/4  


Dimensions in inches.

Specification conform to suit 20T.P.I. Whitwirth Threaded Autolock Clarkson chucks.

These Slot drills have approximately 300 RH helical flutes for RH Cutting with straight face Centre cutting.

 



 

 
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