Nachi 1058100 List 651 27/64x18 Extra Length HSS Taper Shank Drill
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The Nachi List 651 (item ID NAC1058100) is a new, extra-length high-speed steel taper shank twist drill with a 27/64 in (0.4219 in) cutting diameter and 18 in overall length, manufactured in Japan to Nachi's rigorous tooling standards. The Morse taper shank (MT2 for this diameter range per Nachi List 651 standards) provides direct, rigid spindle engagement in drill presses, lathes, and milling machine quills equipped with a compatible taper socket or drill chuck adapter. Constructed from premium HSS with a black oxide steam-tempered finish — visible in the product photos — the drill offers enhanced lubricity and corrosion resistance compared to bright-finish tooling. The extra-length (18 in OAL vs. the standard ~8 in for this diameter) design is suited for deep-hole drilling in structural steel, cast iron, aluminum, and general-purpose ferrous and non-ferrous workpieces where extended reach is required. Point geometry is the standard 118° conventional point, consistent with Nachi List 651 general-purpose HSS taper shank drills.
Product Specifications
| Brand | Nachi |
| Item ID / Part Number | NAC1058100 / List 651 |
| Cutting Diameter | 27/64 in (0.4219 in) |
| Overall Length | 18 in |
| Series / List | List 651 Extra Length |
| Shank Type | Morse Taper (MT2) |
| Material | High-Speed Steel (HSS) |
| Finish / Coating | Black Oxide |
| Point Angle | 118° |
| Flute Type | Spiral / Twist |
| Length Type | Extra Length |
| Country of Origin | Japan |
| Quantity | 1 pc |
| Condition | New |