What Are The BullseyeBore Core Version Differences?
There are four versions (models) of BullseyeBore Core with different characteristics for laser color, battery life, and operational drilling range.
LASER COLOR VERSUS BATTERY LIFE
The Core Red versions CR1-100 and CR1-101 utilize a red laser and the Core Green versions CG1-100 and CG1-101 utilize a green laser. The Core Red versions use less power than the Core Green (green laser) versions and thus offer better battery life. Conversely, the Core Green versions use a 520nm green laser that is in the middle of the visual frequency spectrum and generally easier to see in bright conditions versus the Core Red versions. The trade-off between the two laser colors is battery life versus visibility.
As a general guide, if you plan to use BullseyeBore Core indoors and battery life is important, select the Core Red versions CR1-100 and CR1-101. Conversely, if you intend to use BullseyeBore Core in bright indoor conditions or indirect sunlight, choose the Core Green versions CG1-100 and CG1-101.
As with all drilling applications, some confined and safe testing should be done first in the expected environmental conditions to assess both work surface pattern visibility and overall safety.
OPERATIONAL DRILLING RANGE
The standard versions of BullseyeBore Core (CR1-100 and CG1-100) project a single Reference Pattern and a single Alignment Pattern on the work surface and are designed for an operational drilling range of 2” to 5”.This represents the length of most standard commercial drill bits.
The extended versions of BullseyeBore Core (CR1-101 or CG1-101) introduce a second Alignment Pattern for a total of one Reference Pattern and two Alignment Patterns. The two Alignment Patterns are projected at different diameters on the work surface and are designed for operational drilling range of 2” to 8”. The Alignment Patterns also provide more flexibility when using specialty drill bits such as Spade, Augur, Aircraft, Step, or Forstner bits.
As a general guide, if you plan to use BullseyeBore Core with standard length drill bits in the range of 2” to 5”, select from the standard versions of BullseyeBore Core (CR1-100 and CG1-100). Conversely, if you intend to use BullseyeBore Core with a wider variety of drill bit lengths in the 2” to 8” range, or you plan to use specialty bits such as Spade, Augur, Aircraft, Step, or Forstner bits, select from the extended versions of BullseyeBore Core (CR1-101 or CG1-101). The quick BullseyeBore Core version matrix below provides a helpful version selection guide:
