Dia 76mm 89mm 102mm 127mm Spherical Parabolic Buttons 35° Tungsten Carbide Reaming Dome Bit

Reaming drill bits are designed for layer drilling, to enlarge pilot holes for long hole blasting of drop raises and constructing service holes in underground mines,featuring fast penetration rates in softer rock like shale and limestone with low silica content.

Spherical Button Characteristics:
1. Universal button
2. Good wear resistance
3. Best suited for hard ground
4. 27000-48000PSI(180 to 320Mpa)
5. Suited for abrasive to very abrasive drilling conditions
Ballistic Button Characteristics:
1. Fast Penetration

2. Best suited for soft rock
3. 10000-20000PSI(70 to 140Mpa)
4. Suited for non-abrasive drilling conditions

Feature of Our Reamer Drill Bits
1. applicable to reaming for first-grade and second-grade larger-diameter hole. It can reduce the sectional area between bit blade and rock hole, also solve the problem of large diameter's low drilling speed in the hard formation with good directive.
2. With Pilot adaptors, the drilling direction can be ensured and accurate.
3. ideal for use with rotary steerable drilling systems, providing a wellbore quality not achievable with other reaming tools. Superior wellbore quality, coupled with a proven history of performance, makes the Reamer the choice for underreaming operations.
4.Rreaming equipments come with three kinds: reamer bit match with pilot bit, or dome bit or hole opener bit separately
5.We can design and manufacture the personalized products to meet your specical apllication, such as changing the tungsten carbide insert profile (spherical, ballistic, etc.), face profile (flat face, concave, convex, etc.), and flushing holes.

2. Delivery Time
Based on order quantity, normally it takes 15-30 days for production.
Only 2 or 3 days if we have stock on your request size.
3. Shipping way
Sample order: We suggest Express like DHL/UPS/TNT/FEDEX/EMS or by air.
Bulk order: We suggest by sea shipment.

Why choose our drill bits?
1. Our rock drill rod connect with button bits perfectly for drilling holes
2. Stable and mature welding technology ensure high quality of bits
3. Accurate dimension of taper degree perfectly matches the button bits
4. work reliable and very cost-effective
5. Rod bodies manufactured from high grade steel and processed using state-of-the-art CNC machinery and heat treatment