Drimond Core Bit
Dry drilling in reinforced concrete.
CHARACTERISTICS
- Dry drilling in reinforced concrete.
- The carbide center pin ensures accurate hole starting without bit walking.
- Peripheral threading on cutter for efficient removal of dust.
APPLICATIONS
- All kinds of plumbing work for water, gas, electricity, air-conditioning and drainage jobs.
- Dry drilling in pre-cast concrete, concrete, and reinforced concrete.
(reinforcing bars below 15/32" (12mm) dia.) - Drilling in Hume pipes, ceramic pipes, and PVC pipes.
SPECIFICATIONS
 |
Cutter size: | o1" to 8-1/4" (o25mm to 210mm) | |
|
Max. drilling depth: | Standard size: 5-7/8" (150mm) (Cutter length: 7" (180mm)) Long size: 8-1/4" (210mm) (Cutter length: 9-27/32" (250mm)) |
|
|
Shank size: | S shanks: | 3/8" (10mm) (Cutters of o1" to 1-3/4" (o25mm to 45mm)) |
| L shanks: | 33/64" (13mm) (Cutters of o2" to 8-1/4" (o50mm to 210mm)) |
||
| 3/8" (10mm) (Cutters of o2" to 3-1/8" (o50mm to 80mm)) ..... Optional |
|||
|
Applicable electric drill: Portable electric drills (in the rotary-only mode) | ||
Filing and dressing
During drilling, if any failures are caused on the cutting teeth in such a way that the teeth become imbalance, that its sharpness is lost suddenly, or that its color changes due to some reasons, drill several holes into an optional Diamond dressing plates, or a block or GC stone with the normal drilling method (dry type is applicable) for dressing.
Precautions for use
- Drilling in block may accelerate the wear of cutting teeth.
Use the "Drimond Core Bit for Block" or "Hyperdia Core Bit" for such a use. - Note that the wear of cutting teeth may become faster if you cut concrete soon after it is cured.
- If you use the tool in the percussion mode, chipped or broken tips may result. Always use it in the rotary-only mode.
- Always use this product for dry drilling. Wet drilling shortens the product life.
- Click here for the optimum rotation rate of electric drills and recommended electric drills.