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Bosch Cobalt Drill Bits

HomeBosch Twist Drill Bits Black Oxide & Cobalt › Bosch Cobalt Drill Bits
Bosch Cobalt Drill Bit 1/64
Bosch Cobalt Drill Bit 1/64" x 3/4" x 1/64" CO4128
Regular Price: $2.00
On Sale For: $1.50 
Bosch Cobalt Drill Bit 1/32
Bosch Cobalt Drill Bit 1/32" x 1-3/8" x 1/32" CO4129
Regular Price: $1.82
On Sale For: $1.37 
Bosch Cobalt Drill Bit 3/64
Bosch Cobalt Drill Bit 3/64" x 1/4" x 3/64" CO4130
Regular Price: $1.60
On Sale For: $1.20 
Bosch Cobalt Drill Bit 1/16
Bosch Cobalt Drill Bit 1/16" x 1-7/8" CO4131
Regular Price: $1.56
On Sale For: $1.17 
Bosch Cobalt Drill Bit 5/64
Bosch Cobalt Drill Bit 5/64" x 2" x 5/64" CO4132
Regular Price: $1.56
On Sale For: $1.17 
Bosch Cobalt Drill Bit 3/32
Bosch Cobalt Drill Bit 3/32" x 2-1/4" x 3/32" CO4133
Regular Price: $1.56
On Sale For: $1.17 
Bosch Cobalt Drill Bit 7/64
Bosch Cobalt Drill Bit 7/64" x 2-5/8"x 7/64" CO4134
Regular Price: $1.64
On Sale For: $1.23 
Bosch Cobalt Drill Bit 1/8
Bosch Cobalt Drill Bit 1/8" x 2-3/4" x 1/8" CO4135
Regular Price: $1.98
On Sale For: $1.49 
Bosch Cobalt Drill Bit 9/64
Bosch Cobalt Drill Bit 9/64" x 2-7/8" x 9/64" CO4136
Regular Price: $2.13
On Sale For: $1.60 
Bosch Cobalt Drill Bit 5/32
Bosch Cobalt Drill Bit 5/32" x 3-1/8" x 5/32" CO4137
Regular Price: $2.24
On Sale For: $1.68 
Bosch Cobalt Drill Bit 11/64
Bosch Cobalt Drill Bit 11/64" x 3-1/4" x 11/64" CO4138
Regular Price: $2.36
On Sale For: $1.77 
Bosch Cobalt Drill Bit 3/16
Bosch Cobalt Drill Bit 3/16" x 3-1/2" x 3/16" CO4139
Regular Price: $2.71
On Sale For: $2.03 
Bosch Cobalt Drill Bit 13/64
Bosch Cobalt Drill Bit 13/64" x 3-5/8" x 13/64" CO4140
Regular Price: $3.49
On Sale For: $2.62 
Bosch Cobalt Drill Bit 7/32
Bosch Cobalt Drill Bit 7/32" x 3-3/4" x 7/32" CO4141
Regular Price: $3.71
On Sale For: $2.78 
Bosch Cobalt Drill Bit 15/64
Bosch Cobalt Drill Bit 15/64" x 3-7/8" x 15/64" CO4142
Regular Price: $4.04
On Sale For: $3.03 
Bosch Cobalt Drill Bit 1/4
Bosch Cobalt Drill Bit 1/4" x 4" x 1/4" CO4143
Regular Price: $4.49
On Sale For: $3.37 
Bosch Cobalt Drill Bit 17/64
Bosch Cobalt Drill Bit 17/64" x 4-1/8" x 17/64" CO4144
Regular Price: $4.80
On Sale For: $3.60 
Bosch Cobalt Drill Bit 9/32
Bosch Cobalt Drill Bit 9/32" x 4-1/4" x 9/32" CO4145
Regular Price: $5.20
On Sale For: $3.90 
Bosch Cobalt Drill Bit 19/64
Bosch Cobalt Drill Bit 19/64" x 4-3/8" x 19/64" CO4146
Regular Price: $6.09
On Sale For: $4.57 
Bosch Cobalt Drill Bit 5/16
Bosch Cobalt Drill Bit 5/16" x 4-1/2" x 5/16" CO4147
Regular Price: $6.51
On Sale For: $4.88 
Bosch Cobalt Drill Bit 21/64
Bosch Cobalt Drill Bit 21/64" x 4-5/8" x 21/64" CO4148
Regular Price: $7.07
On Sale For: $5.30 
Bosch Cobalt Drill Bit 11/32
Bosch Cobalt Drill Bit 11/32" x 4-3/4" x 11/32" CO4149
Regular Price: $8.29
On Sale For: $6.22 
Bosch Cobalt Drill Bit 23/64
Bosch Cobalt Drill Bit 23/64" x 4-7/8" x 23/64" CO4150
Regular Price: $9.42
On Sale For: $7.07 
Bosch Cobalt Drill Bit 3/8
Bosch Cobalt Drill Bit 3/8" x 5" x 3/8" CO4151
Regular Price: $9.89
On Sale For: $7.42 
Bosch Cobalt Drill Bit 25/64
Bosch Cobalt Drill Bit 25/64" x 4-7/8" x 25/64" CO4152
Regular Price: $10.33
On Sale For: $7.75 
Bosch Cobalt Drill Bit 13/32
Bosch Cobalt Drill Bit 13/32" x 5-1/4" x 13/32" CO4153
Regular Price: $10.98
On Sale For: $8.24 
Bosch Cobalt Drill Bit 27/64
Bosch Cobalt Drill Bit 27/64" x 5-3/8" x 27/64" CO4154
Regular Price: $11.67
On Sale For: $8.75 
Bosch Cobalt Drill Bit 7/16
Bosch Cobalt Drill Bit 7/16" x 5-1/2" x 7/16" CO4155
Regular Price: $12.13
On Sale For: $9.10 
Bosch Cobalt Drill Bit 29/64
Bosch Cobalt Drill Bit 29/64" x 5-5/8" x 29/64" CO4156
Regular Price: $14.58
On Sale For: $10.94 
Bosch Cobalt Drill Bit 15/32
Bosch Cobalt Drill Bit 15/32" x 5-3/4" x 15/32" CO4157
Regular Price: $14.84
On Sale For: $11.13 
Bosch Cobalt Drill Bit 31/64
Bosch Cobalt Drill Bit 31/64" x 5-7/8" x 31" CO4158
Regular Price: $15.24
On Sale For: $11.43 
Bosch Cobalt Drill Bit 1/2
Bosch Cobalt Drill Bit 1/2" x 6" x 1/2" CO4159
Regular Price: $15.71
On Sale For: $11.78 

Bosch cobalt drill bits are specially designed for drilling in hard steel. Thick web helix delivers fast material removal combined with increased durability for maximum efficiency and performance. Each bit is manufactured to exacting specifications and features a split point that starts on contact with no walking or skating, eliminating the need for a center punch.