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Drill bit holder (1.5 to 3mm) — image 1
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Drill bit holder (1.5 to 3mm)

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This design is a handle for small drill bits. It is a remix from my blade handle…

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Category
Tools
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This design is a handle for small drill bits. It is a remix from my blade handle and also uses a mandrel system to securely hold the drill. To build it you need a 25mm M3 screw and a melt insert. Print one "handle", one "Knob" and choose one of the mandrel types. The mandrels are characterized by two numbers. The number following "D" is the diameter of the drill bit and the number following "I" is the diameter of the melt insert. The mandrels can accommodate drill bits with diameters of about -0.4 to +0.1mm.

I also designed a version of the handle for 4mm screwdriver bits and a clip to hold them (see second picture). 

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