So, got the handy hand-drill, stubby, fits hand perfectly, and the collet looks serviceable for hand-force/light duty.
But how do I get into the boxes of bits. I’ve seen no indication of lines, tape, or pivots.
Baffled I am!
6 Likes
It’s a snap close, push gently on the sides in opposite direction and it will open. If it doesn’t open push in opposite direction.
Like this…
They are good bits but the small ones are quite brittle.
5 Likes
Well that was easy! LOLZ-
Tungsten is like that. Go slow, and use as little force as possible.
Thanks, Wade!
5 Likes
They sell the exact bits at Harbor Freight but hopefully Meng marks the sizes more legibly.
4 Likes
Please keep in mind that these drill bits (all CNC bits for that matter) are very sharp but also VERY brittle. They will not accept any side way movement (the thinner the worse, ofcourse) or they will snap.
5 Likes
Yes, they’re really intended for use in machinery where lateral movement of the tool isn’t an issue. The hardness of tungsten certainly isn’t necessary for the materials most modelers are working with.
3 Likes
Thanks, all
I do not plan any serious torque/side loading of the bits. Their use on styrene and resins should be OK. For example, my Abrams CATTB has no telescope or coax ports on the gun mantle. The contemporaneous pictures from its development are also nekkid. If I build one to have had it gone to a European scenario against the godless hordes, it’d need both. And a RWS on the rooftop, for those pesky drones and thin-skinned vehicles.
I also find the length of the DSPIAE very useful in my hands, as it is a bit shorter than my old pin vise.
Thanks again!
2 Likes
Use no downward force, let the weight of the drill push the bit down as you spin the tool. Go slow and don’t force it. That will save your bits from killing themselves.
3 Likes
It is almost impossible to avoid lateral movement. And the thin bits are of course the most brittle…
2 Likes