The DSPIAE XDB-S01 covers the fine end of the Mobius drill-bit range, where small changes in diameter matter for rivet holes, grab handles, antenna mounts and photo-etch pins. Its six tungsten bits progress without gaps from 1.0 to 1.5 mm in 0.1 mm steps. Closely spaced choices let you match smaller fittings instead of forcing one hole size across several details.
Included diameters: 1.0, 1.1, 1.2, 1.3, 1.4 and 1.5 mm.
Every bit carries a Ø3.175 mm shank — the fitting DSPIAE designed his Mobius hand drill (AT-MHD) to hold.
The flat spin-lock notch engages the Mobius chuck, stopping the bit turning inside the collet under load.
Our PT-HD 3.175 mm hand drill takes the same shank but does not engage the flat.
A gold case label identifies SPIN-LOCK DRILL BIT 01.
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Notes · Q & A
What size drill bit do I need for pinning miniatures?+
For most metal and resin minis, 0.8mm to 1.0mm suits brass rod pinning. Drop to 0.3–0.5mm for magnets and small barrel-drilling. Match the bit to your rod or magnet diameter rather than guessing, and check the product description for sizes stocked.
Why do my micro drill bits keep snapping?+
Nearly always side load — the bit flexing because the pin vice isn't held straight, or forcing it through resin. Let the bit cut at its own pace, keep the vice vertical, and clear swarf often. Sub-0.5mm bits are glass-brittle.
Do I need a pin vice or can I use a powered rotary tool?+
A hand-held pin vice gives the control you want for fine work and rarely melts plastic. Powered tools spin fast enough to friction-melt resin and plastic and snap small bits, so keep them for larger holes only.
How do I start a hole without the bit wandering?+
Mark the centre first with a sharp blade tip or a scriber to make a small divot. That gives the bit a seat to bite into, so it starts on the mark instead of skating across a curved or glossy surface.
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Notes · Logistics
Shipping
Orders placed before 3pm (Mon–Fri) are dispatched the same day. UK delivery is by Royal Mail 24 Tracked. Free UK delivery on orders over £70. International delivery available via Royal Mail International Tracked or courier.
Returns
If you're not happy with your purchase, contact us within 30 days for a full refund or exchange. Items must be unused and in original packaging.