Drag Bits

SlimDril International supply drag bits suitable for a wide range of drilling applications, including environmental, exploration, geothermal, water well, road construction, and oil & gas drilling. Drag bits are particularly effective in soft, unconsolidated formations such as clays, shale, sands, and soft limestone.

Available in both step type and chevron type cutting structures, drag bits provide an efficient and economical solution where tricone or PDC bits are not required.

Step Drag Bits

Step drag bits are designed for drilling overburden, sands, clays, and soft formations. Their aggressive cutting structure produces larger cuttings and higher rates of penetration (ROP) compared to chevron styles, although with reduced durability.

Recommended operating parameters:

Rotary speed: 60–80 RPM
Weight on bit (WOB): Light

Chevron Drag Bits

Chevron drag bits are suited to more abrasive formations, including soft sandstones and shales. While penetration rates are lower than step drag bits, the cutting structure is more durable, providing improved wear resistance in tougher ground.

Recommended operating parameters:

Rotary speed: 50–60 RPM
Weight on bit (WOB): Light to medium (increase WOB for harder formations)

Premium chevron drag bits are available for water well and oilfield drilling applications.

Features & Benefits

Multiple Cutting Styles Available

Supplied in both step drag and chevron drag designs, allowing the correct balance of aggressiveness and durability for specific ground conditions.

Ideal for Soft & Unconsolidated Formations

Designed for drilling in clays, sands, shale, and soft limestone, delivering efficient penetration in ground conditions unsuitable for harder rock bits.