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BullseyeBore Core Green CG1-100

- Standard green laser model for 2"-5" drill bits (5.1-12.7cm)
- Optimized for ~2.5 hour battery life
- Projects two circular patterns (1 Reference, 1 Alignment)
- Indoor or indirect sunlight only

Detailed Description
  • DRILL PERFECTLY STRAIGHT EVERY TIME: Projects two bright green laser patterns that instantly show when your drill is perpendicular to any surface. When the circles align concentrically, you get a straight hole every time - no guesswork, no crooked results.
  • PREMIUM GREEN LASER TECHNOLOGY: Features high-visibility 520nm green laser with one fixed Reference Pattern and one variable Alignment Pattern that work clearly in bright workshops and indirect sunlight. Supports drill bits from 2" to 5". 
  • UNIVERSAL COMPATIBILITY & INSTANT SETUP: Magnetically attaches to thousands of common drill chucks in seconds. Switch between guided and unguided drilling instantly - no tools required. Not compatible with Rotary Hammer Drills.
  • WORKS IN ANY ORIENTATION: Unlike gravity-dependent bubble levels, works flawlessly on walls, floors, ceilings, or angled surfaces. Perfect for overhead work, vertical drilling, and awkward positions.
  • SAFE & NON-CONTACT DESIGN: Magnetic connection breaks instantly if contacted during operation, while your drill bit continues safely. Never touches your workpiece - no scratches, marks, or damage.
  • CLEAR SIGHT LINES: Unique low-profile design provides unobstructed views of both drill bit and work area throughout operation, ensuring precision from start to finish.
  • INDOOR/INDIRECT SUNLIGHT USE: Optimized for workshop conditions and covered outdoor areas. Does not work in direct sunlight.
  • RECOMMENDED ACCESSORY: We recommend adding a BullseyeBore Core Chuck Extension Pack to move the projected patterns closer together for easier alignment visualization with a wider variety of bits.
BullseyeBore Core Green CG1-100

BullseyeBore Core Green CG1-100

$69.95

$69.95

BULLSEYEBORE CORE GREEN CG1-100

Just keep the circles aligned as you drill and you will always get a straight (perpendicular) hole. It's really that easy

BullseyeBore Core CG1-100
Specifications

CG1-100 MODEL DESCRIPTION BullseyeBore Core Green Standard Distance
Ideal For High visiblity use (under direct lights, dark surfaces, or some shaded outdoor conditions), designed for standard length bits 2" to 5" (5.1cm to 12.7cm)
Projected Laser Beam Count 2 (1 Fixed, 1 Alignment)
Laser Color Green (520nm)
Laser Output 1mW / 2 = ~0.5mW per beam
Estimated Battery Duration (357 Duracell or Engergizer) ~2.5 hours
Operating Temperature Range  20°F to 100°F (-7°C to 38°C)
Water Proof No
Water Resistant No
Dust & Debris Resistant Yes
Laser Certification Class 1
Drill Chuck Face Compatibility Metallic, Flat Face ≥ 0.65" (1.7cm)
Operational Bit Length Range 2" to 5" (5.1cm to 12.7cm)
Maximum Bit Diameter 0.5" (1.3cm)
Maximum Drill RPM 2500 RPM
Batteries (2) LR44, recommend 357 Silver Oxide Disposable Coin Cell 
Dimensions (L * W * H) 2.91" × 1.10" × 0.45" (7.4cm × 2.8cm × 1.1cm)
Weight (w/o Batteries) 19gm
Material Polycarbonate
Includes Protective Hard Shell Case Yes
Includes Batteries Yes, (2) LR44
Package Contents BullseyeBore Core unit
Protective hard case
LR44 batteries
User manual

How Does BullseyeBore
Core Work

ALIGNED

The Reference Beam is projected parallel to the drill bit. It creates a circular reference patter non the work surface as your drill rotates. The beam is circular and unchanging even if the drill is tilted or misaligned when working on a flat work surface

MISALIGNED

The Alignment Beam is also circular when the drill is aligned with a flat work surface. However, unlike the Reference Beam, the Alignment Beam Pattern will distort into an elliptical shape when the drill is misaligned/tilted on the flat work surface. To get your holes straight both Beams need to be circular and aligned (concentric)

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