| 摘要 |
An improved upright drilling jig comprises two parallel panels parallelly mounted on a leveled base platform, and an inclined-hole drilling jig pivotally disposed between the sides of the parallel panels in a manner that it can be vertically adjusted. A sliding saddle is slidably and pivotally mounted at the top of the inclined-hole drilling jig through two axial bars. The rear side of the drilling jig is concavely constricted to form a bow jumper area and disposed with a discharge concavity in a manner approaching a clamping end plane. The discharge concavity has a chip hole inside that communicates with a guide axle hole. Such arrangement can achieve optimum performance of inclined hole drilling of woodwork.
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