Counterbore
High speed steel straight shank
Used for drilling recessed holes into scales for Corby Bolts, Gulso Bolts, screws etc.
Counterbore pilots must be purchased separately.
These also do not come with the allen wrenches needed to set the screw so you will need to supply your own.
Selection Guide:
Corby bolts
3/16" uses Counterbore #CB1 with Pilot #PIL1
1/4" uses Counterbore #CB2 with Pilot #PIL2
5/16" uses Counterbore #CB3 with Pilot #PIL3
Gulso Bolts
1/4" uses Counterbore #CB2 with Pilot #PIL5
5/16" uses Counterbore #CB3 with Pilot #PIL2
3/8" uses Counterbore #CB4 with Pilot #PIL4
I can’t fault these belts , they cut well and don’t wear out super fast like others I’ve used.
A handy piece of equipment at a great price
Top service as always !
Good product great service always a pleasure to deal with
Love these belts great for fast stock removal
Great looking product. I've used this before and it finished up very nicely.
Awesome products, great service and advice.
Well priced, quick delivery and well packed, even soft refractory bricks were undamaged. Will shop again, cheers
One bad ass belt. Zips through about a dozen blanks, easy
Great product. Service was equally great!
Good stuff and came pretty quick, and I enjoyed the little candy added too, thank you
Fast Shipping. Personalised service. Supplier of the Year 2026, as voted by me.
Fast and excellent service and turn around in a few days.
Also appreciate the minties and happy cartoon reply.
As always an amazingly efficient service
