HSS Aircraft Extension Drill Bit (6" & 12" Long Reach)
SKU: NT-DRL-111
Est. 1998 · Unit 9F-H, East Building, Haijing Center, NO.144(M) Huangpu AVE, Guangzhou, China
Precision aircraft extension twist drill engineered to NAS 907 standards with 6" (152mm) and 12" (305mm) reach for aerospace, HVAC, and deep recessed framework drilling.
| Standard | NAS 907 Type J / B |
|---|---|
| Overall Lengths | 6" (152mm (6")) & 12" (305mm (12")) |
| Material Grade | HSS M2 (6542) / HSS-Co M35 |
| Point Angle | 135° Split Point Self-Centering |
| size | model | reach | fluteLength |
|---|---|---|---|
| 1/8" (3.18mm) | NT-DRL-111-18-6 | 6" (152mm (6")) | 1-7/16" (37mm (1.46")) |
| 3/16" (4.76mm) | NT-DRL-111-316-6 | 6" (152mm (6")) | 2-5/16" (59mm (2.32")) |
| 1/4" (6.35mm) | NT-DRL-111-14-12 | 12" (305mm (12")) | 2-3/4" (70mm (2.76")) |
| 3/8" (9.53mm) | NT-DRL-111-38-12 | 12" (305mm (12")) | 3-5/8" (92mm (3.62")) |
Aerospace airframe maintenance, skin riveting, and rib bulkhead drilling, Commercial HVAC, refrigeration tubing, and deep conduit penetrations, Automotive roll cage and tubular chassis fabrications
Process-by-requirement custom OEM/ODM manufacturing confirmed against buyer drawings prior to production.
Select individual or multiple dimensional models below to append directly to your B2B RFQ requisition.
| size | model | reach | fluteLength | RFQ Requisition | |
|---|---|---|---|---|---|
| 1/8" (3.18mm) | NT-DRL-111-18-6 | 6" (152mm (6")) | 1-7/16" (37mm (1.46")) | ||
| 3/16" (4.76mm) | NT-DRL-111-316-6 | 6" (152mm (6")) | 2-5/16" (59mm (2.32")) | ||
| 1/4" (6.35mm) | NT-DRL-111-14-12 | 12" (305mm (12")) | 2-3/4" (70mm (2.76")) | ||
| 3/8" (9.53mm) | NT-DRL-111-38-12 | 12" (305mm (12")) | 3-5/8" (92mm (3.62")) |
Aerospace airframe maintenance, skin riveting, and rib bulkhead drilling, Commercial HVAC, refrigeration tubing, and deep conduit penetrations, Automotive roll cage and tubular chassis fabrications
Precision aircraft extension twist drill engineered to NAS 907 standards with 6" (152mm) and 12" (305mm) reach for aerospace, HVAC, and deep recessed framework drilling.
Manufacturing processes and technical parameters are tailored according to customer requirements. Tell us your target material, dimensions, drawings, and order quantity, and we configure the construction, bond/alloy grade, and finishing to match.
We support flexible FOB and CIF delivery at any port in China (including Guangzhou, Shenzhen, Ningbo, Shanghai, Qingdao, Tianjin, and Xiamen) with 100% pre-shipment inspection before dispatch.
Yes. Custom laser marking, color finishes, private-label retail or industrial packaging, and barcode labeling are agreed with you before production.
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