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DBTBC121 21 pc Cobalt Thunderbit® Drill Bit Set
DBTBC129 29 pc Cobalt Thunderbit® 135° Split
Point Drill Bit Set (1/16–1/2??)
THUNDERBIT®/Cobalt – 135° Split Point
• For drilling at higher speeds in tougher drilling conditions
• Feature 135° split points for easier drill starting without the need for center punching
• Heavy duty web construction for higher strength and less breakage
• Improved chip ejection through a specially engineered flute design
DBTBC121 21 pc Cobalt Thunderbit® Drill Bit Set
• For drilling at higher speeds in tougher drilling conditions
• Feature 135° split points for easier drill starting without the need for center punching
• Heavy duty web construction for higher strength and less breakage
• Improved chip ejection through a specially engineered flute design
• Set contains DBTBC1/16 thru DBTBC3/8 (21 bits) in B121B metal drill index
DBTBC129 29 pc Cobalt Thunderbit® 135° Split
Point Drill Bit Set (1/16–1/2")
• For drilling at higher speeds in tougher drilling conditions
• Feature 135° split points for easier drill starting without the need for center punching
• Heavy duty web construction for higher strength and less breakage
• Improved chip ejection through a specially engineered flute design
• Set contains DBTBC1/16 thru DBTBC1/2 (29 bits) in B129B metal drill index
Set Contains: | |||
Stock No. | Size, inches | DBTBC121 | DBTBC129 |
DBTBC1/16 | 1/16 | • | • |
DBTBC5/64 | 5/64 | • | • |
DBTBC3/32 | 3/32 | • | • |
DBTBC7/64 | 7/64 | • | • |
DBTBC1/8 | 1/8 | • | • |
DBTBC9/64 | 9/64 | • | • |
DBTBC5/32 | 5/32 | • | • |
DBTBC11/64 | 11/64 | • | • |
DBTBC3/16 | 3/16 | • | • |
DBTBC13/64 | 13/64 | • | • |
DBTBC7/32 | 7/32 | • | • |
DBTBC15/64 | 15/64 | • | • |
DBTBC1/4 | 1/4 | • | • |
DBTBC17/64 | 17/64 | • | • |
Set Contains: | |||
Stock No. | Size, inches | DBTBC121 | DBTBC129 |
DBTBC9/32 | 9/32 | • | • |
DBTBC19/64 | 19/64 | • | • |
DBTBC5/16 | 5/16 | • | • |
DBTBC21/64 | 21/64 | • | • |
DBTBC11/32 | 11/32 | • | • |
DBTBC23/64 | 23/64 | • | • |
DBTBC3/8 | 3/8 | • | • |
DBTBC13/32 | 13/32 | • | |
DBTBC7/16 | 7/16 | • | |
DBTBC29/64 | 29/64 | • | |
DBTBC31/64 | 31/64 | • | |
DBTBC1/2 | 1/2 | • | |
B121B | — | • | |
B129B | — | • |