These "Undercut type" drill bits are designed to produce excellent hole-wall quality. The major purpose of this type of drill bit is to prevent increasing cutting heat and solve the smear problem during the drilling process on miltilayer boards. Currently we are stocking the 39 most popular sizes in this type of drill bit. |
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| .35mm (.0138) UCDB $22.00 | | | #78 (.0160) UCDB $19.50 | | | .80mm (.0315) UCDB $12.50 | |||
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| #67 (.0320) UCDB $12.50 | | | #66 (.0330) UCDB $12.50 | | | #65 (.0350) UCDB $12.50 | |||
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| .95mm (.0374) UCDB $12.50 | | | #62 (.0380) UCDB $12.50 | | | #61 (.0390) UCDB $12.50 | |||
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| #59 (.0410) UCDB $12.50 | | | #57 (.0430) UCDB $12.50 | | | #56 (.0465) UCDB $12.50 | |||
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| 1.25mm(.0492) UCDB $12.50 | | | #55 (.0520) UCDB $13.00 | | | #54 (.0550) UCDB $13.00 | |||
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| #53 (.0595) UCDB $13.00 | | | 1/16" (.0625) UCDB $13.50 | | | #52 (.0635) UCDB $13.50 | |||
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| #51 (.0670) UCDB $13.50 | | | #49 (.0730) UCDB $13.50 | | | #48 (.0760) UCDB $13.50 | |||
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| 5/64" (.0781) UCDB $14.00 | | | #47 (.0785) UCDB $14.00 | | | #44 (.0860) UCDB $15.00 | |||
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| #43 (.0890) UCDB $15.00 | | | #38 (.1015) UCDB $15.50 | | | 1/8" (.1250) UCDB $17.00 | |||
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| #24 (.1520)UCDB $41.00 | | | #19 (.1660) UCDB $41.00 | | | #17 (.1730) UCDB $44.00 | |||
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