2.2 Harris Micro-Punch Tips
The Harris Micro-Punch Tips are manufactured from
304 stainless steel bar, nitride coated and heat treated to
Rockwell Hardness 60 (Rc60). Each tip is hand sharpened
to a ne edge delivering approximately 1500 to 2000 sample
discs from FTA cards.
The optimum coring cycle (i.e. the length of time the tip
rotates in contact with an FTA card surface) for a new tip
ranges from 1 to 1.5 seconds. As the tip cutting edge dulls
with use the coring cycle will increase as the user attempts to extend the cutting life of the tip.
The coring cycle must be monitored. When the coring cycle noticeably increases above 3
seconds, the Harris Micro-Punch Tip must be replaced. If you continue to operate the Harris
e-Core at coring cycles above 3 seconds you will be putting strain on the motor thereby
shortening its rated operating life. Each Harris e-Core is sold with two extra Harris Micro-Punch
Tips to maximize throughput and functionality.
The tip cover cap is made from poly ethylene plastic. The cover cap must be placed on the cutting
tip when the Harris e-Core is not in use. This will protect the tip from incidental contact, which
could damage the cutting edge, and from user injury through contact with the cutting edge.
All Harris Micro-Punch Tips are sold with a protective cover cap. The cap must be placed on the old
tip prior to replacement and remain on the new tip when replacing tips on the Harris e-Core. The
Harris e-Core MUST NOT BE PLUGGED IN WHEN CHANGING TIPS. Harris Micro-Punch Tips
are not sold sterilized.
2.3 Optional Cord Wrist Strap
The optional cord wrist strap allows the operator
the option of restricting the movement (rotation)
of the DC jack in the pin at the top of the Harris
e-Core. The wrist strap positions the cord
extending from the DC jack along the operator’s
hand to their wrist and forearm, thereby keeping
excess cord from the work area. The power
cord is loosely strapped along the wrist and
forearm using the velcro wrist strap, providing
a less congested working area. The image on
the far right shows the cord tucked between the
palm of the hand and the Harris e-Core without
the use of the writst strap. There are many
ways to manage the cord during operation.
When using the wrist strap the operator must remember to unstrap the velcro band from the wrist to free the
excess cord when the e-Core is no longer in use. If this is not performed the operator may pull the unit and power
supply from the work surface, possibly damaging the unit and causing injury to themselves and others.
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