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HMT 7 Piece tapping sizes Versadrive HSS 8% Cobalt drill bit set« Back

HMT 47piece tapping sized Versadrive HSS Cobalt drill bit set from wasp supplies ltd
HMT 47piece tapping sized Versadrive HSS Cobalt drill bit set from wasp supplies ltd HMT 47piece tapping sized Versadrive HSS Cobalt drill bit set from wasp supplies ltd HMT 47piece tapping sized Versadrive HSS Cobalt drill bit set from wasp supplies ltd HMT 47piece tapping sized Versadrive HSS Cobalt drill bit set from wasp supplies ltd
contains: 5.0 ,6.0 ,6.8 ,8.0, 8.5, 10 & 10.2mm drill bits
Brand: HMT
Condition: New
MPN: 209010-SET3
£83.60
£98.35
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HMT 7 piece tapping sizes Versadrive HSS cobalt drill bit set, contains 5.0, 6.0, 6.8, 8.0, 8.5, 10 and 10.2mm drill bits for tapping M6, M8, M10 and M12 holes. Versadrive HSS Cobalt drill bit can be used with any drill with a 1/2" chuck, with adapter can be used with impact wrench or magnetic drill.. see video below. 
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Versadrive Drill Bits 
  • Extremely fast drilling with minimal Kickback, can be used with an impact wrench up to 10mm dia 
  • Precision ground flutes with deep web design for fast and easy chip clearance 
  • 135 degree split point angle for very easy starting and extremely high accuracy
  • 8% cobalt composition for long service life and high endurance in structural steels and hard metals
  • Gold max low friction titanium coating to stop heat burnout 
  • High strength, non slip 11mm hex shank design 

IMPACT DRILLING RECOMMENDATIONS

 Diameter                  Min Torque Recommended for 10mm Steel
4.2mm 125Nm
5.0mm 130Nm
5.5mm 135Nm
6.0mm 140Nm
6.5mm 145Nm
6.8mm 160Nm
7.0mm 200Nm
7.5mm 240Nm
8.0mm 280Nm
8.5mm 320Nm
9.0mm 360Nm
9.5mm 380Nm
10mm 400Nm

Application Notes

Using VersaDrive Drill Bits to drill holes with an Impact wrench:

VersaDrive Impact wrench drill bits work by utilising the high torque rotary drive of an impact wrench in a conventional rotary drilling operation. 

The impact wrench mechanism should not engage or impact when drilling, if this occurs, too great drilling pressure is being used and should be reduced.

Impact wrench driven drill bits will transfer less torque then a conventional drill bit used in a rotary drill, meaning less fatigue for the operator.

An experienced operator can utilise a higher torque impact wrench or setting (if variable speed) to increase the speed of the job.

The drilling time when used with an impact wrench is slightly slower but comparable to a standard rotary pistol drill.

Using VersaDrive Drill Bits to enlarge existing holes with an Impact wrench

  • VersaDrive Drill Bits can be used to enlarge existing holes with an Impact Wrench. However, by default this process will utilise the impact operation (as opposed to rotary only) meaning a possibility of reduced drill bit life. For effective use the increased hole size should be no greater than two thirds of the starting hole size.
  • For hole sizes larger than 12mm we recommend the use of a reamer where possible.


 

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