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Diameter Size
Decimal Equivalent
Flute Length
Overall Length
Stock Number
Fractional
7/64
.1094
1/2
1-7/8
DE0109
1/8
.1250
1/2
2
DE0125
9/64
.1406
1/2
2
DE0140
5/32
.1562
1/2
2-1/16
DE0156
3/16
.1875
1/2
2-3/16
DE0187
7/32
.2188
1/2
2-3/8
DE0218
1/4
.2500
1/2
2-1/2
DE0250
Wire
11
.1910
1/2
2-1/4
DE0191
30
.1285
1/2
2
DE0128
Double End Drills
HSS, Surface Treated 135 Split Points on each end. Used for drilling truck and auto bodies, and/or thin sheet metal. Popular for pop rivet drilling applications. 135 self-centering split point aids in penetration.