Description
Sutton
Sutton 1.90mm HSS Micro Jobber Drill Bit
Part No: D1010190 | Barcode: 9311963005645 | Series: D101 Silver Bullet Micro
The Sutton D1010190 is a 1.90mm precision micro drill from the Silver Bullet D101 series — M2 high-speed steel ground to the tight tolerance needed for sub-2mm work in PCBs, jewellery, model engineering, and watchmaking. Sized to DIN 338 jobber length, parallel shank.
1.90mm Diameter
M2 High Speed Steel
118° Standard Point
Bright Finish
DIN 338 Length
Parallel Shank
Suitable For
PCB / Electronics
Jewellery Work
Model Engineering
Watch & Clock Repair
Brass & Copper
Aluminium
Soft Steels
Plastics
Key Features & Benefits
- Precision-ground 1.90mm cutting diameter — sized to engineering tolerance, not a rounded approximation. Important when the hole has to take a specific pin, axle, or wire.
- M2 high-speed steel — standard tool steel, easy to resharpen if you have the patience to grind a sub-2mm bit. Holds a usable edge through normal use without picking up burrs.
- 118° standard point — the conventional general-purpose point, forgiving in soft and medium materials. Acceptable trade-off between centring accuracy and breakage resistance at this size range.
- DIN 338 jobber length — standard length proportional to diameter, so the flute portion is short enough to be rigid but long enough to clear chips from typical work depths.
- Parallel shank cut to size — the shank is the same diameter as the cutting flutes, so chuck grip is maximum (important when the part visible above the chuck is only a few millimetres long).
- Australian-made by Sutton — Australian engineering tolerance and consistent point geometry batch to batch, important when buying micro drills since 1.90mm bits from cheap suppliers often vary +/-0.05mm.
When to Use This Drill
The Sutton D1010190 (1.90mm) is the right drill for any precision work below 2mm — PCB assembly, miniature pivot holes for clockwork, jewellery dowel pins, hand-built model railway track work, and any scratch-built engineering at small scale. For routine drilling above 2mm, use the standard D101 metric range. Below 0.5mm, work in a precision drill press or pin vice; cordless drills don’t have the speed control to avoid snapping bits this size.
Pro Tip: Always run sub-1mm drills at high RPM (10,000+ for 0.5mm) and very light feed pressure — the cutting edge is so short that low RPM produces large chips per revolution, which lever the bit and snap it. A pin vice or rotary tool with a 1/8" collet works better than most cordless drills for 1.90mm work; the sensitivity of feel matters more than torque at this size. Apply a tiny drop of cutting fluid; even brass benefits.
Authorised Sutton Dealer — Sutton Tools is an Australian-owned manufacturer (Thomastown, Victoria). This product is backed by full Sutton manufacturer warranty with local technical support — visit Sutton Tools for the full D101 Silver Bullet range.
Product Specifications
| Part No. | Diameter |
|---|---|
| D1010035 | 0.35mm |
| D1010050 | 0.50mm |
| D1010055 | 0.55mm |
| D1010060 | 0.60mm |
| D1010065 | 0.65mm |
| D1010070 | 0.70mm |
| D1010075 | 0.75mm |
| D1010080 | 0.80mm |
| D1010085 | 0.85mm |
| D1010090 | 0.90mm |
| D1010095 | 0.95mm |
| D1010110 | 1.10mm |
| D1010120 | 1.20mm |
| D1010130 | 1.30mm |
| D1010140 | 1.40mm |
| D1010150 | 1.50mm |
| D1010170 | 1.70mm |
| D1010180 | 1.80mm |
| D1010190 ★ | 1.90mm |
| D1010195 | 1.95mm |
★ You are viewing the highlighted size. Other sizes in the D101 micro range are also available — click any part number above.
Browse our full range of drill bits at Alltools Geelong.
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