One-piece solid hex shanks that lock straight into impact drivers and quick-change chucks. The 1Pc design eliminates the two-piece assembly gap, transferring full impact torque with less runout — made for fast drilling in metal, wood and masonry without a chuck key. Factory-direct from a 20-year precision-tools manufacturer with ISO 9001 / 14001 / 45001 triple-system certification.


![]() |
![]() |
| Φd (inch) | Φd (mm) | L1 (mm) | L2 (mm) |
| 1/8" | 3.17 | 70 | 41 |
| 9/64" | 3.57 | 73 | 44 |
| 5/32" | 3.96 | 79 | 51 |
| 11/64" | 4.37 | 83 | 54 |
| 3/16" | 4.76 | 89 | 59 |
| 13/64" | 5.16 | 92 | 62 |
| 7/32" | 5.56 | 95 | 64 |
| 15/64" | 5.95 | 98 | 67 |
| 1/4" | 6.35 | 102 | 70 |
| 17/64" | 6.75 | 105 | 73 |
| 9/32" | 7.14 | 108 | 75 |
| 19/64" | 7.54 | 111 | 78 |
| 5/16" | 7.94 | 114 | 81 |
| 11/32" | 8.73 | 121 | 87 |
| 3/8" | 9.52 | 127 | 92 |
| 1/2" | 12.7 | 152 | 114 |
Produced in an ISO 9001 / 14001 / 45001 triple-certified facility — every drill is inspected before packing.
One-piece solid shanks remove the assembled-joint weak point of two-piece drills, reducing wobble and breakage under impact torque.
Standard 1/4" hex quick-change chucks on impact drivers, drill drivers and hex adapters.
Yes — custom branding, packaging and bulk programs are available.
Email [email protected] or message us on WhatsApp for wholesale pricing, samples and lead times.
Copyright © 2026 Amsuo Technology Limited. All rights reserved — Privacy Policy