
1/4" Quick-Change Hex Shank Brad Point Drill Bit for Wood
Precision brad point wood drill bit with 1/4" hex shank and dual outer cutting spurs for tear-out-free blind and through holes in hardwoods, MDF, and cabinetry.

DIN 341 Extra-Long Morse Taper Shank Heavy-Duty HSS Drill Bit
SKU: NT-DRL-108
Est. 1998 · Unit 9F-H, East Building, Haijing Center, NO.144(M) Huangpu AVE, Guangzhou, China
Extra-long series Morse taper shank twist drill to DIN 341, delivering extended penetration depth for large castings, die blocks, and thick offshore steel plates.
| Standard | DIN 341 / ISO 494 |
|---|---|
| Material Grade | HSS M2 (6542) / HSS 4341 |
| Shank Taper | Morse Taper MT1 to MT4 |
| Finish | Steam Tempered Black Oxide |
| size | model | taper | length | fluteLength |
|---|---|---|---|---|
| 15.0mm (19/32") | NT-DRL-108-150 | MT2 | 267mm (10-1/2") | 160mm (6-5/16") |
| 20.0mm (25/32") | NT-DRL-108-200 | MT2 | 294mm (11-9/16") | 181mm (7-1/8") |
| 25.0mm (63/64") | NT-DRL-108-250 | MT3 | 355mm (14") | 220mm (8-11/16") |
Extra-deep hole drilling in heavy castings and forged steel blocks, Heavy mining equipment frames and offshore structural fabrications, Large injection mold base deep waterlines and ejector guide holes
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 | taper | length | fluteLength | RFQ Requisition | |
|---|---|---|---|---|---|---|
| 15.0mm (19/32") | NT-DRL-108-150 | MT2 | 267mm (10-1/2") | 160mm (6-5/16") | ||
| 20.0mm (25/32") | NT-DRL-108-200 | MT2 | 294mm (11-9/16") | 181mm (7-1/8") | ||
| 25.0mm (63/64") | NT-DRL-108-250 | MT3 | 355mm (14") | 220mm (8-11/16") |
Extra-deep hole drilling in heavy castings and forged steel blocks, Heavy mining equipment frames and offshore structural fabrications, Large injection mold base deep waterlines and ejector guide holes
Extra-long series Morse taper shank twist drill to DIN 341, delivering extended penetration depth for large castings, die blocks, and thick offshore steel plates.
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.
Cross-Referenced Tooling

Precision brad point wood drill bit with 1/4" hex shank and dual outer cutting spurs for tear-out-free blind and through holes in hardwoods, MDF, and cabinetry.

Precision fully ground HSS twist drill engineered to DIN 338 standard with 135° split point for effortless self-centering and fast penetration in steel and alloy metals.

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