PQ Surface Drilling Overshot
  • PQ Surface Drilling Overshot
  • PQ Surface Drilling Overshot

PQ Surface Drilling Overshot

PEERCHEER offers compact PQ Ezy lock overshot for use with PQ/PQ3 core barrel. PQ EZY lock overshot is designed to protect against accidental release of PQ/PQ3 inner tube assembly. PQ Ezy Lock Overshot is ideal for surface applications when hoisting above ground.
PQ Surface Drilling Overshot Features:
• Ezy Lock Sleeve provides a quick, one-handed rotation of the sleeve to lock the lifting dogs.
• Quick Release Safety Pin locks the overshot head to the spearhead point.
• Threaded connection between jar staff and overshot head.
• High strength alloy steel jar staff with increased diameter and fail safe stop.


Product Details


PQ Surface Drilling Overshot Standard Parts:

1-PQ Overshot Eye Bolt
2-PQ Overshot Cable Swivel Collar
3-PQ Overshot Thrust Bearing
4-PQ Overshot Castle Nut
5-PQ Overshot Cotter Pin
6-PQ Overshot Grease Fitting
7-PQ Overshot Cable Swivel Body
8-PQ Overshot Jar Staff
9-PQ Overshot Jar Tube
10-PQ Overshot Hex Nut
11-PQ Overshot Washer
12-PQ Overshot Cap
13-PQ Overshot Spring
14-PQ Overshot Sleeve
15-PQ Overshot Compression Spring
16-PQ Overshot Ball
17-PQ Overshot Head
18-PQ Overshot Compression Spring
19-PQ Overshot Lifting Dog
20-PQ Overshot Plain Pin
21-PQ Overshot Spring Pin
22-PQ Overshot Locking Pin
23-PQ Overshot Set Screw
24-PQ Overshot Sleeve
25-PQ Overshot Locking Sleeve

(1)PQ Overshot with roller bar type is also available

PQ Surface Drilling Overshot
PQ Nonimal Parameter mm Inches
PQ Hole Diameter(approx.) 122.6 4.827
PQ Core Diameter(approx.) 85.0 3.346
PQ Core Bit Set OD(approx.) 122.0 4.803
PQ Core Bit Set ID(approx.) 85.0 3.346
PQ Reaming Shell Set OD(approx.) 122.6 4.827