HMT 2025 Termékkatalógus - Flipbook - Page 114
Bolt Extractor System - Data Sheet
Drill Bit No.
Impact Torque
Impact Torque
Grade 8.8 bolts
Grade 8.8 bolts
Ft Lb Torque
Nm Torque
#3
130
140
#4
145
200
#5
160
220
#6
320
430
#7
380
500
Impact Torque
Grade 8.8 bolts
Grade 8.8 bolts
Ft Lb Torque
Nm Torque
#3
178
160
#4
207
280
#5
222
300
#6
430
580
#7
Rotary Only
Rotary Only
Bolt
Extractor
Extractor No.
Impact Torque
Left Handed
Pilot Drill Bits
LEFT HANDED DRILL BITS BEST PRACTICE ADVICE
GUIDELINE PARAMETERS ONLY Actual parameters may vary depending on operating conditions
1. Designed for use in left hand direction (Reverse) only.
2. For best results drilling through hardened bolts and materials, it is recommended to start with a small diameter drill bit and
step up to the 昀椀nished diameter with increasingly larger drill bits
3. Ensure ample application of lubricant (SpeedLube/BioCut Blue) during the drilling process to prevent overheating & work
hardening of the fastener.
4. Wherever possible use a scribed or drawn mark to 昀椀nd the exact center of the fastener to be drilled.
5. For best results drill all the way through the bolt/stud before inserting the Screw Extractor
6. Where the application allows, using the Left Hand drills in a reversible Magnet Drill will make the drilling process faster and
more stable.
7. For larger diameter drill bit sizes (#6/#7) or when drilling particularly hard materials, using a rotary or magnetic drill may
provide better results than an Impact wrench.
BOLT EXTRACTOR BEST PRACTICE ADVICE
GUIDELINE PARAMETERS ONLY Actual parameters may vary depending on operating conditions
1. Ensure the correct sized pilot hole is drilled into seized bolt using VersaDrive® Left Hand bits
2. Use a soft-faced hammer to securely tap the extractor into pilot hole
3. Attach VersaDrive® Impact Adapter and use on left hand rotation (Reverse Mode)
4. Where possible ensure ample lubricant is applied to the drilled hole and time allowed for the fastener to cool after drilling and
to allow the lubricant to penetrate into the drilled hole and threads.
5. To assist with successful extraction it is important that the pilot hole is drilled square to the centre of the fastener to avoid the
extractor running o昀昀 plane when reversing out, and potentially breaking or coming loose.
6. Whilst the VersaDrive extractors are superior to standard stud extractors readily available, it is recognised that stud/fastener
extraction is a very challenging task and a complete success cannot be guaranteed in all circumstances. Using heating methods
and/or releasing 昀氀uids can often assist with the removal process.
QUICK GUIDE
- Drill correct sized pilot hole in seized bolt using VersaDrive® Left Hand bits
- Use a hammer to securely tap the extractor into pilot hole
- Attach VersaDrive® Impact Adapter and use on left hand rotation
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