Description
Sutton
Sutton 11/64″ HSS Imperial Jobber Drill Bit
Part No: D1010437 | Barcode: 9311963000336 | Series: D101 Silver Bullet Imperial
The Sutton D1010437 is an imperial-sized HSS jobber drill, 11/64″ (4.37mm) on a parallel shank. Cut to the imperial size class so it matches UNC/UNF tap drill charts and inch-spec clearance holes — useful when working off old plans, US-made machinery, or imperial-thread fasteners.
11/64″ Imperial
4.37mm Equivalent
79mm OAL
47mm Flute
M2 High Speed Steel
118° Standard Point
Bright Finish
ANSI B94-11
Suitable For
Mild Steel
Aluminium
Brass & Copper
Wood
Plastics
Imperial Tap Drill Sizes (UNC/UNF)
Key Features & Benefits
- 11/64″ cut to imperial standard — not a metric drill rounded to inches; this is the actual fractional size, sized to match imperial tap drill charts (e.g. 1/4"-20 UNC tap drill is #7, but 13/64" or close fractional drills also work).
- M2 high-speed steel — tough, heat-resistant tool steel that holds an edge through repeated drilling in mild steel and aluminium without re-sharpening.
- 118° standard point — the classic general-purpose drill geometry, easy to resharpen on a standard drill grinder, and forgiving in a wide range of materials.
- Parallel shank cut to size — the shank diameter equals the cutting diameter, so chuck grip is maximum and the drill runs true even in 3-jaw cordless chucks.
- ANSI B94-11 dimensioned — the US standard for jobber-length drills, ensuring overall and flute lengths line up with imperial workshop equipment.
- Bright finish — clean low-friction surface that takes cutting fluid well in metals and doesn’t pick up gummy residues in aluminium.
When to Use This Drill
The Sutton D1010437 (11/64″) is the right choice when you specifically need an imperial-sized hole — matching American or pre-metric Australian engineering drawings, imperial-thread tapping (UNC/UNF), or clearance holes for inch-pitch fasteners. For everyday drilling, choose the equivalent metric size from the D101 metric range; the cutting performance is identical, only the diameter is different.
Pro Tip: If you’re tap drilling for an imperial thread, double-check the size on a Sutton tap drill chart — the fractional sizes don’t always exactly match the calculated tap-drill diameter, and the closest fractional drill (which is what 11/64″ represents) is usually the practical choice. For 1/4"-20 UNC, the chart calls for #7 (0.201"), but 13/64" (0.203") is what most workshops actually use.
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. | Imperial | Metric Equiv | Overall Length | Flute Length |
|---|---|---|---|---|
| D1010079 | 1/32″ | 0.79mm | 32mm | 14mm |
| D1010198 | 5/64″ | 1.98mm | 49mm | 24mm |
| D1010238 | 3/32″ | 2.38mm | 52mm | 27mm |
| D1010278 | 7/64″ | 2.78mm | 57mm | 32mm |
| D1010318 | 1/8″ | 3.18mm | 65mm | 36mm |
| D1010357 | 9/64″ | 3.57mm | 70mm | 40mm |
| D1010397 | 5/32″ | 3.97mm | 75mm | 43mm |
| D1010437 ★ | 11/64″ | 4.37mm | 79mm | 47mm |
| D1010476 | 3/16″ | 4.76mm | 85mm | 50mm |
| D1010635 | 1/4″ | 6.35mm | 107mm | 69mm |
| D1051032 | 13/32″ | 10.32mm | 142mm | 95mm |
★ You are viewing the highlighted size. Other sizes in the D101 imperial range are also available — click any part number above.
Browse our full range of drill bits at Alltools Geelong.
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