BLUE DIAMOND Auger Bits

BLUE DIAMOND Auger Bits Blue Diamond Auger Bits are engineered for demanding drilling sites, delivering dependable performance in heavy soils, clay, frozen ground, fracturable rock, asphalt, and compacted soils. With a 4' standard length and hardened components, these bits are built to endure tough jobs and deliver precision bores over time. Features Four specialized families: Heavy Duty Bits (fabricated boring head, hardened bolt-on teeth, hardened fishtail point, 4' length, heavy double flighting, 2" hex drive); Heavy Duty with Cast Head Bits (cast steel boring head, hardened drive-in teeth, hardened fishtail point, 4' length, 2" hex drive); Rock Bits (drive-in carbide bullet teeth, solid rock and concrete capability, ¾" thick boring head, 4' length, 2" hex drive, minimum down pressure for best results); Tree Bits (tapered version of the Heavy Duty bit for large-diameter bores, 4' length, 2" hex drive, heavy double flighting). Standard length and drive: All models feature a 4' standard length and a 2" hex drive for broad compatibility with common boring rigs. Durable construction: Hardened fishtail points and hardened teeth (bolt-on or drive-in, depending on model) maximize wear resistance in tough soils. Rock-ready option: Rock bits offer carbide teeth for enhanced penetration through solid rock and concrete, with a ¾" thick boring head for added rigidity. Cast head option: Cast steel boring heads in select models provide robust durability for repeated, heavy-duty use. Benefits These auger bits are designed to help professionals complete challenging borings with confidence and efficiency. Key benefits include: Versatility across ground conditions: Whether you’re digging in moderate soil, heavy clay, frozen ground, fracturable rock, or asphalt, there’s a Blue Diamond bit tailored to the task. Enhanced durability: Hardened teeth and points, plus cast or fabricated heads, reduce wear and extend service life in demanding environments. Improved drilling performance: Heavy double flighting on many models promotes better chip evacuation, reducing stalling in dense soils. Rock-specific capability: For solid rock and concrete, choose rock bits with carbide teeth and a thick boring head to maintain penetration and stability under higher loads (minimum down pressure around 3000 lbs for optimal performance). Professional-ready flexibility: The standard 4' length and 2" hex drive fit a wide range of rigs, making these bits suitable for fence posts, utility bore holes, pilings, and other industrial applications. Who this is ideal for: Professional drill operators, utility contractors, and landscapers tackling tough bore jobs, from large-diameter Tree Bits for expansive bores to compact 4" and 6" Heavy Duty Bits for routine installations. Practical tips: - Match the bit type to ground conditions: use Rock Bits with carbide teeth for solid rock and concrete; opt for Cast Head or fabricated Heavy Duty Bits for clay, frost, or compacted soils. - Ensure your rig can apply sufficient down pressure on rock work to maximize penetration and minimize wear (rock bits typically benefit from higher contact force). - For large-diameter bores, Tree Bits offer a tapered option that maintains performance while enabling bigger holes over the same 4' working length. PART NUMBER MODEL WEIGHT HEAVY DUTY BITS — — 105105 4" Diameter, Heavy Duty, W/2" Hex 37 lbs 105110 6" Diameter, Heavy Duty, W/2" Hex 45 lbs 105115 8" Diameter, Heavy Duty, W/2" Hex 76 lbs 105120 9" Diameter, Heavy Duty, W/2" Hex 85 lbs 105125 10" Diameter, Heavy Duty, W/2" Hex 100 lbs 105130 12" Diameter, Heavy Duty, W/2" Hex 113 lbs 105135 15" Diameter, Heavy Duty, W/2" Hex 132 lbs 105140 16" Diameter, Heavy Duty, W/2" Hex 136 lbs 105145 18" Diameter, Heavy Duty, W/2" Hex 166 lbs 105147 20" Diameter, Heavy Duty, W/2" Hex 182 lbs 105150 24" Diameter, Heavy Duty, W/2" Hex 210 lbs 105155 30" Diameter, Heavy Duty, W/2" Hex 278 lbs 105160 36" Diameter, Heavy Duty, W/2" Hex 372 lbs HEAVY DUTY WITH CAST HEAD BITS — — 105205 6" Diameter, Cast Head, W/2" Hex 45 lbs 105208 8" Diameter, Cast Head, W/2" Hex 90 lbs 105210 9" Diameter, Cast Head, W/2" Hex 98 lbs 105215 10" Diameter, Cast Head, W/2" Hex 113 lbs 105220 12" Diameter, Cast Head, W/2" Hex 128 lbs 105225 15" Diameter, Cast Head, W/2" Hex 139 lbs 105230 16" Diameter, Cast Head, W/2" Hex 167 lbs 105235 18" Diameter, Cast Head, W/2" Hex 204 lbs 105237 20" Diameter, Cast Head, W/2" Hex 231 lbs 105239 24" Diameter, Cast Head, W/2" Hex 272 lbs 105241 30" Diameter, Cast Head, W/2" Hex 312 lbs 105243 36" Diameter, Cast Head, W/2" Hex 430 lbs 105245 42" Diameter, Cast Head, W/2" Hex 460 lbs 105250 48" Diameter, Cast Head, W/2" Hex 550 lbs ROCK BITS — — 105305 4" Diameter, Rock, W/2" Hex 70 lbs 105310 6" Diameter, Rock, W/2" Hex 66 lbs 105320 9" Diameter, Rock, W/2" Hex 102 lbs 105330 12" Diameter, Rock, W/2" Hex 134 lbs 105340 16" Diameter, Rock, W/2" Hex 203 lbs 105345 18" Diameter, Rock, W/2" Hex 201 lbs 105350 24" Diameter, Rock, W/2" Hex 291 lbs 105355 30" Diameter, Rock, W/2" Hex 340 lbs 105360 36" Diameter, Rock, W/2" Hex 395 lbs TREE BITS — — 105405 18-9" Diameter, Tree, W/2" Hex 120 lbs 105410 24-12" Diameter, Tree, W/2" Hex 198 lbs 105415 30-15" Diameter, Tree, W/2" Hex 264 lbs 105420 36-18" Diameter, Tree, W/2" Hex 302 lbs 105425 42-18" Diameter, Tree, W/2" Hex 432 lbs 105430 48-24" Diameter, Tree, W/2" Hex 449 lbs