Countersink-Taper Shank

taper shank counter sinkA cutter with teeth on the conical cutting faces, integral with a taper shank for holding and driving designed to produce a conical seating to accommodate the conical head of a component such as a screw or relief.

 

 

 

MM SIZE

Nominal size. Small Dia      Overall Length Morse Taper No.
60 deg 90&120
16 3.2 97 93 1
20 4 120 116 2
25 7 125 121 2
31.5 9 132 124 2
40 12.5 160 150 3
50 16 165 153 3
63 20 200 185 4
80 25 215 196 4

INCH SIZE

Dia OvL Small Dia M T No.
 1/2 3.1/2   5/32 1   
 5/8 3.5/8   3/16 1   
 3/4 4.1/4   1/4 2   
 7/8 4.1/4   9/32 2   
1    4.3/8   5/16 2   
1 1/8 4.1/2   3/8 2   
1 1/4 5.3/8  13/32 3   
1 3/8 5.3/8   7/16 3   
1 1/2 5.1/2   1/2 3   
1 3/4 6.3/4   9/16 4   
2    7     21/32 4   
2 1/2 7.3/4   3/4 4   
3    8.1/4 1      4