Page 377 - SF ELEC CAT_V4.0_WEB_F2-UPDATE-18-02-19

BITS – STEP

STEP BITS FOR MILD STEEL, PLASTICS, ETC NOT
RECOMMENDED FOR STAINLESS STEEL

SPECIFICATIONS

Single Hole Bits are designed to drill one
indicated hole size through a series of steps from
bit to tip size. Multi-hole bits allow you to drill a
hole in any of the stated diameters

mm 12.7 12.7 12.7 12.7 20.6 22.2 22.2 28.6 34.9 9.7 30.5 32.5
Step Bit Hole Type Single Single Multi Multi Multi Multi Multi Multi Multi Multi Multi Multi
Inch mm 34410 34401 36402 30005 34411 34403 30008 36414 36018 36020 36022
1/8 3.2 
5/32 4.0 
3/16 4.8    
7/32 5.6 
¼ 6.4    
9/32 7.1  J HOLE MAKING & BENDING
5/16 7.9    
11/32 8.7 
3/8 9.5    
0.382 9.7  
13/32 10.3 
7/16 11.1    
15/32 11.9 
0.492 12.5 
½ 12.7      
9/16 14.3  
0.598 15.2 
5/8 15.9  
0.638 16.2 ISO-16
11/16 17.5  
0.732 18.6 
¾ 19.1  
0.803 20.4  ISO-20
13/16 20.6  
7/8 22.2    
0.886 22.5 
1.00 25.4 ISO-25
1.114 28.3 
1-1/8 28.6  
1.201 30.5 
1-7/32 31.0 
1-1/4 31.8 
1.280 32.5 ISO-32
1-3/8 34.9 
Overall Length (mm) 47.6 85.7 87.3 87.3 61.9 90.5 74.6 79.4 47.6 95.3 85.7
Minimum Chuck Size (mm) 9.5 9.5 9.5 9.5 9.5 9.5 9.5 9.5 9.5 9.5 9.5 www.specialisedforce.com.au
Max Material Thickness (mm) 3.5 3.5 9.5 3.5 3.5 3.5 3.5 3.5 3.5 6.4 6.4
Bit Extension 901 901 901 901 - - - - 901

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