Bits catalogue
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COMMONLY USED ABIT SIZES FOR Casing Size Coupling Size * Increase penetration rates in oil * Reduce drilling time and costs f Bit cost varies from 2% - 5% of total cost, but bit affects up to consist of thin layer of bonded dimond particles plus a thicker layer of tung sten carbide - lOx harder than steel - 2x harder than tungsten carbide - Most wear resistant material * PDC bits are used primarily in deep and/ or expensive well: and are effectively used in soft-medium hard formations. * Advances in metallurgy, hydraulics, and cutter geome PDC bits drill longer and more effectively • Most...

PDC stands for Polycrystalline Diamond Compact which refers to the cutters on these drill bits. PDC bits have exceptional rates of penetration when drilling & can out preform other bits in the right conditions. The diamond cutters are 10 times stronger than steel and PDC bits are most effective when drilling through shale, salt, clay, stone, sand, and concrete. Dominant Size Of Cutters Additional Options Design Features IDEAL FOR: EVIRONMENTAL DRILLING, MINING, GEOTHERMAL & CONSTRUCTION ^

MAIN CUTTING STRUCTURE High wear-resistant cutters ■ Highest abrasion-resistant cutters guage back taper Guage protected by tungsten carbide inserts with impregnate! SECOND ROW OF CUTTING STRUCTURE Guage reinforced with ther stable diamond inserts structure placed behind main one Additional stabilizing inserts placed behind main cutting Additional tungsten carbide inserts with impregnated diamonds placed behind main cutting structure

CONE BITS IADC CODE REFRENC FIRST DIGIT: JBKk * Mill Tooth Assign numbers 1-3 for Soft, Medium & Hard Formations Tungsten Carbide Inserts Assign numbers 4-8. The higher the series number the harder more abrasive the rock formation. FIRST SECOND THIRD LETTER DIGIT DIGIT DIGIT SECOND DIGIT: Relative degree of hardness within the series. Higher numbers indicate harder formations. Numbers range from 1-4 further assist in identifying the formation with 4 being the Hardest & 1 being the Softest. THIRD DIGIT: Numbers 1-7 indicate the primary Seal/Bearing Design, Seal protection & Special Gauge...

(OIL FIELD, MINING, & WATERWELL) MILL TOOTH BITS CAN BE RETIPPED & BUILT UP WITH HARD TUNGSTEN Mill Tooth Bits have very high drilling rates in soft and medi- um-soft formations. Western Drilling Tools can hard face Milled Teeth so that they sharpen themselves while drilling. Sealed . Bearing Mill Tooth Tri-cone Bits come with or without gauge Both open bearing and sealed bearing Mill Tooth Tri-cone/ Roller cone bit can come with or without gauge protection & * PREMIUM TUNGSTEN CARBIDE INSERTS * APPLICATION SPECIFIC CUTTING STRUCTURES * OPTIMIZED BEARING DESIGN * PREMIUM SHIRTTAIL HARD...

(OIL FIELD, MINING, & WATERWELL) Precision bearings made with the tightest tolerances in the industry! The bearing materials used have extremely low friction and high load capacity. Chemically heat resistant, heat tolerant HNBR materi- als for bearing seal and pressure compensator. This material is very compatible with oil based muds aircooled and open bearings are also available . ULTRA HARD REAMING GAUGE: Put more active cutting elements on gauge than anyone in the industry. Perfect for directional applications. Its gauge holding ability is superior for maintaining gage on lateral or...

MAIN CUTTING STRUCTURE Conical and spherical shapes increase bending resistance of insert. Recommended for hard and very hard formations carbide materia wear resistance Diamond protected heel row prevents diameter loss Additional reaming gauge row Protects shirttail and reduces thermal effect on sealing, thereby increasing bearing life Diamond protected reaming Diamond protected reaming Diamond protected reaming PREMIUM TUNGSTEN CARBIDE INSERTS APPLICATION SPECIFIC CUTTING STRUCTURES OPTIMIZED BEARING DESIGN Shirttail hardf acing and le equipped with increased quantity of tungsten carbide...

DRAG BITS DRAG BITS Other than PDC bits, Drag Bits have the lowest cost per bit. Drag bits are a rotary drill bit built with a steel body and tungsten carbide teeth. These bits will out preform other more expensive bits if used appropriately. Drag bits are extremely popular choice for seismic drilling, blast hole drilling and geothermal drilling applications. For best results adjust the rotational speed to 50% less than what you would normally use for a tricone bit of the same size and reduce the weight on bit by the same amount. GATORBACK DRILL BITS These durable bits are capable of...

THREAD SIZE Clays, Coal, Salts, Shales, Soft Lime- stone, Discontinuous Sands etc... Sedimentary Rocks, Limestone, * Long Life * High Rate of penetration * Drill Full-Guage, Straight Hole * Soft-medium and soft only forma * Longer lifespan than conventio 70 - 20 reduce weight as RPM increases Evironmental Drilling, Waterwells Drilling, Blast Hole Drilling, Mining,

SEISMIC BITS CHEVRON SEISMIC BITS AVAILABLE SIZES: AVAILABLE SIZES Can be built to special order or oversized. GATORBACK SEISMIC BITS AVAILABLE SIZES TWO-WAY SEISMIC BITS AVAILABLE SIZES ONE STEP (RIPPER) SEISMIC BITS AVAILABLE SIZES: Western Drilling Tools has the seismic bit to suit * Very cost effective T * Allow for a very high rate of penetration & hole depth while drilling. * Made from premium quality materials * Available for all varieties of seismic drilling & associated formations

CLAW BITS CLAW BITS Claw bit drill bits are an excellent choice for soft to medium formations. Claw bits devour gravel, and drill well through, clays; shale's and sand stones. There are many different styles of claw bits available. AT WESTERN DRILLING TOOLS THE CLAW BIT BODY, FINGERS, AT WESTERN DRILLING TOOLS WE CAN RECOMMEND THE APPROPRIATE CLAW BIT FOR YOUR DRILLING NEEDS A nice advantage of using a claw bit is that the teeth and pilot bits are easy to replace and repair both in the field and the shop. OUR CLAW BITS RANGE IN SIZE FROM 4-3/4 (120.6MM) CLAW BIT WITH A 2-3/8 API REG