Premium High Speed Long Boy Drill Bit – 12″ Long
Premium High Speed Long Boy Drill Bits are built for extra-deep drilling applications where standard jobber bits just can’t reach. Each bit is 12″ overall with a 9″ cutting length, making them the go-to choice for beam drilling, long-reach applications, and boring through thick materials.
Manufactured from premium high-speed steel (HSS), these bits deliver durability, heat resistance, and consistent performance in a wide range of materials including hard steel, wood, plastics, fiberglass, and laminates.
For convenience, sizes over 1/2″ feature a cut-down 1/2″ shank, allowing them to fit standard 1/2″ drill chucks without requiring special equipment. That means you get big-diameter capacity with everyday drill compatibility.
If you need a reliable solution for structural work, construction, or shop projects that demand extra reach, the Long Boy series gets the job done right.
| Long Boy Drill Bits 12″ Length | Product Sku: |
| 1/8″ x 12″ Long Premium HSS Longboy Drill bit | DR-LB1812 |
| 5/32″ x 12″ Long Premium HSS Longboy Drill bit | DR-LB53212 |
| 3/16″ x 12″ Long Premium HSS Longboy Drill bit | DR-LB31612 |
| 7/32″ x 12″ Long Premium HSS Longboy Drill bit | DR-LB73212 |
| 1/4″ x 12″ Long Premium HSS Longboy Drill bit | DR-LB1412 |
| 9/32″ x 12″ Long Premium HSS Longboy Drill bit | DR-LB93212 |
| 5/16″ x 12″ Long Premium HSS Longboy Drill bit | DR-LB51612 |
| 11/32″ x 12″ Long Premium HSS Longboy Drill bit | DR-LB113212 |
| 3/8″ x 12″ Long Premium HSS Longboy Drill bit | DR-LB3812 |
| 13/32″ x 12″ Long Premium HSS Longboy Drill bit | DR-LB313212 |
| 7/16″ x 12″ Long Premium HSS Longboy Drill bit | DR-LB71612 |
| 15/32″ x 12″ Long Premium HSS Longboy Drill bit | DR-LB153212 |
| 1/2″ x 12″ Long Premium HSS Longboy Drill bit | DR-LB-911-0816 |
| 9/16″ x 12″ Long Premium HSS Longboy Drill bit -1/2″ Cut Down Shank | DR-LB-911-0916 |
| 5/8″ x 12″ Long Premium HSS Longboy Drill bit -1/2″ Cut Down Shank | DR-LB-911-1016 |
| 3/4″ x 12″ Long Premium HSS Longboy Drill bit -1/2″ Cut Down Shank | DR-LB-911-1216 |
| 7/8″ x 12″ Long Premium HSS Longboy Drill bit -1/2″ Cut Down Shank | DR-LB-911-1416 |
| 1″ x 12″ Long Premium HSS Longboy Drill bit -1/2″ Cut Down Shank | DR-LB-911-1111 |
