小井眼扩孔钻头是老井重钻的关键设备。
The reaming drill bit in slim hole is a key tools of re-drilling in existing well.
介绍精扩孔钻的实践参数、特点及刃磨要领。
The practice of pure hole drilling parameters, the main characteristics and grinding were introduced.
本实用新型是一种扩孔钻套，属于加工刀具。
The utility model relates to a hole enlarging drill bushing, which belongs to a processing knife tool.
应该是因为该处由较大直径的扩孔钻导致的骨皮质较薄。
This was thought to be due to the thin cortical walls as a result of the larger reamer diameter in this group.
主要用于刃磨铣刀、铰刀、拉刀、盘形车刀、插齿刀及扩孔钻等。
Mainly Renmo milling cutter, reamer, pulling knives, plate-shaped lathe tool, knife inserted teeth and bore drilling.
可生产硬质合金麻花钻、阶梯麻花钻、直槽钻、扩孔钻、三刃钻、复合钻；
We are capable of manufacturingcarbide twist drills, step twist drills, straight flute drills, hole dilating drills, threeflute drills, combination drills;
公司产品包括：直柄、锥柄铣刀、丝锥、中心钻、倒角刀、扩孔钻、铰刀、锥钻、直钻及各类高速钢刀具。
Our products including End Mills, Machine Taps, Reamers, Center drills, Counterbore, Countersinks, Core drills, HSS tool bits and milling cutters.
非开挖反向回拉扩孔施工过程中时常出现钻杆正转而发生退扣，造成钻具孔内脱落事故的反常现象。
The dropping buckle usually occurs when reverse pulling is used for expanding the bore in the trenchless construction, thus causing the fall-off of the drilling tools.
主要产品有：各类金刚石钻头、复合片钻头、套管靴子、扩孔器、单双管绳索取芯钻具、绳索取芯钻杆、套管及其它钻探工具。
Thee main products are: all kinds of diamond drill bits, PDC bits, casing boots, reaming, single and double tube wireline coring drilling, coring drill pipe, casing and other drilling tools.
扩孔加大了环空间隙，固井后水泥环厚度和强度增大，可以延长侧钻小井眼油井寿命。
The annular clearance was also enlarged, thus the thickness and strength of the cement sheath was increased, and the oil well life of the sidetracked slim hole was also prolonged.
用于狭窄部位钻孔，扩孔攻丝等作业，具有重量轻，刚性好，钻削头边心距小等特点，且可反转。
Suitable for broaching or tapping in the cabined place. The air drill is light, good rigidity an can be used for drilling in reverse, aiguilles of which has short distance form the border to center.
我公司同样开发生产了规格齐全的土层非开挖钻具，包括导向钻头、分动器、筒式扩孔器、流道式扩孔器、板式扩孔器、变径接头等。
Pangolin also develop and produce a complete range of soil non-excavation drill, including Bit-oriented, sub-actuators, Drum-type Reamer, Flow-type Reamer, Plate-type Reamer, Adjustable joints.
我公司同样开发生产了规格齐全的土层非开挖钻具，包括导向钻头、分动器、筒式扩孔器、流道式扩孔器、板式扩孔器、变径接头等。
Pangolin also develop and produce a complete range of soil non-excavation drill, including Bit-oriented, sub-actuators, Drum-type Reamer, Flow-type Reamer, Plate-type Reamer, Adjustable joints.
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