- Home
- Oilfield Equipment CATALOGUE
- Wellhead & Christmas Tree
- Well Control Equipment
- Diesel generator sets
- Mud Logging Unit
- Mud Pump & Spares
- Top Drive Drilling Equipment
- Formation tester
- Multiphase Flow Meter ( MFM)
- New Research & Design Tools
- Blade Retrievable New-type Scraper (Patent product)
- Down-hole Safety Valve
- Dual Reverse Circulating Valve
- Full bore Pressure Controlled Select Tester Valve
- New-type Dual Sealing Multi-function Hydraulic Packer (Patent product)
- New-type Dual Sealing Multi-function Mechanical Packer (Patent product)
- New-type MFC Clean & Scrape Integrated Operation Tool and String Selection (Patent product)
- New-type MFC Drill and Scrape Integrated Operation Tool and String Selection (Patent product)
- Wellhead Hydraulic Safety Valve
- Packer
- Well Testing & Completion Tools
- Well Workover Tools
- Wellhead Tools
- Drilling tools
- Casing Bushing And Insert Bowl series
- DG Series Of Hooks
- DWJ-178/250 Power Slips
- Dslseries Power Swivels
- FP sealed anti-spraying boxes
- FSQ Mouse Hole Clamping Device
- Hydraulic Pneumatic Spinner
- JGS-1B Geophysical Well Logging Equipment
- Kelly Spinner
- PZ Series Of Mud Pump
- Pneumatic reversing valve
- Q Series Of Spinning
- QD Pneumatic Casing
- QJ Series Air Winches
- QW Series Drill Pipe Air Slips
- Roller Kelly Bushing
- Rotary Bushing And Insert
- Suspender
- Swivel With Spinner
- TB casing back-up tong
- TC SERIES OF CROWN BLOCKS
- TF Series Of Casing Guides
- TJA Series Casing And Tubing coupling bucking unit
- TJX Series Of Mandrel
- TQ Series Casing Tong
- TS Series Of Hydraulic Riser
- XQ Series of Hydraulic Power Tongs
- YC Series Of Traveling
- YG SERIES OF HOOK BLOCKS
- YJ Series Hydraulic Winches
- YM Series Hydraulic Cathead
- YXM Rotary Cathead
- YZB(YZC) Series Of Hydraulic Power Unit
- ZP Series Of Rotary Tables
- ZQ Drill Pipe Power Tongs
- ZQF216-110 lron roughneck
- ZQJ178 90 drill pipe screwing tong
- ZTQ SERIES DUAL-PURPOSE POWER TONGS
- Drill collars / Drill pipes
- Elevators / Slips / Spiders
- ACCESSORY TOOLS
- CEMENTING TOOLS
- Coring Tools
- DRILL STEM TOOLS
- Arrow Type Back Pressure Valve
- By-pass Valve
- Casing Scraper
- Circulating Sub
- Cup Tester
- Drift
- Drop-In Check Valve
- Fixed Diameter Hole Opener
- Float valve sub
- Full Opening Safety Valve
- Inside BOP
- Integral blade stabilizer
- Kelly Valve
- Key seat Reamer
- Lifting cap and Casing Protector
- Non-rotating Stabilizer
- Oriented Bent sub
- Replaceable Sleeve Stabilizer
- Roller Reamer
- Rotary Sub And Others
- Wear Sub
- Drill Collar
- Drill Pipe
- FISHING TOOLS
- AJ Type Safety Joint
- Cable Fishhook
- Die Collars
- Ditch Magnet
- External Hook
- H Type Safety Joint
- Impression Blocks
- Internal Hook
- Junk Subs
- Lifting-Lowering and Releasing Overshots
- Mechanical External Cutter
- Mechanical Internal Cutter
- Multi-String Cutter
- Releasing Spear
- Releasing and Reversing Overshots
- Reverse Circulation Fishing Magnet
- Reverse Circulation Junk Basket
- Reversing Spear
- Reversing sub
- Section Mill
- Series 20 Overshort
- Series 70 Short Catch Overshot
- Sliding Block Spear
- Standard Fishing Magnet
- Taper Tap
- Washover Pipe
- series 150 overshot
- Integral Heavy Weight Drill Pipe
- JARS TOOLS
- BXJ Lubricated fishing bumper sub
- CSJ Super Fishing Jar
- DJ Surface Bumper Jar
- JYSZ Double Acting Hydraulic-Mechanical Drilling Jar
- KXJ Fishing Bumper Sub
- QJZ Mechanical Drilling Jar
- QYSZ Type Full Hydraulic Drilling Jar
- SJ Double-Way Shock Absorber
- YJ one-way shock absorber
- YSJ Type Z Oil Jar
- ZJS Jar Intensifier
- ZSJ/ZXJ Hydraulic & Mechanical
- Kellys & tool joints
- MILLING TOOLS
- Kelly / Bushings
- Search
- About
- Supply Chain Management
- Global Reach
- Contact
Concave-Bottom Mill Shoe
The concave bottom mill shoe is used to grind downhole small objects and other unstable fallen objects.
Technical specifications and parameters
| Type | OD (mm) | Connection(Box) | Hole size(mm) |
|---|---|---|---|
| MA89 | 89 | 2 3/8 REG | 95.2-101.6 |
| MA97 | 97 | NC26 | 107.9-114.3 |
| MA110 | 110 | NC26 | 117.5-127.0 |
| MA121 | 121 | NC31 | 130.0-139.7 |
| MA130 | 130 | NC38 | 142.9-152.4 |
| MA140 | 140 | NC38 | 155.6-165.1 |
| MA156 | 156 | NC38 | 168.0-187.3 |
| MA178 | 178 | NC50 | 190.5-209.5 |
| MA200 | 200 | NC50 | 212.7-241.3 |
| MA232 | 232 | NC50 | 244.5-269.5 |
| MA257 | 257 | 6 5/8 REG | 273.1-295.3 |
| MA279 | 279 | 6 5/8 REG | 298.5-317.5 |
| MA295 | 295 | 6 5/8 REG | 320.6-346.1 |
| MA330 | 330 | 6 5/8 REG | 349.3-406.4 |
| MA381 | 381 | 7 5/8 REG | 406.4-444.5 |
