WARRANTY & CUSTOMER SERVICE:
GORCHEN provides 30 Days Warranty and Lifetime Product Support.
Within this period, if the countersink drill bit gets broken after usage or for any reason you are not satisfied with it,
please contact us for new replacements or return, we will resolve any possible issue for you.
All 7 bits can drill a screw hole whose screw head position diameter is 9.3mm (0.37 inch).
To avoid countersink drill bits become overheated and get burned up due to fast rotary friction,
we suggest customers to use cutting fluid to keep the bits cold during usage.
7 x Countersink Drill Bits (7 Listed Sizes)
1 x Allen Wrench
1 x Plastic Storage Case
Material: Drill bits are made of high speed steel 4241, the black parts are made of #45 steel
Feature: Drilling hole depth can be adjusted by loosening and tightening the black parts, known as drill bit rings
Attention: Only for drilling screw holes in wood and plastic; can not drill holes in steel material
Size: 1/8 inch, 9/64 inch, 5/32 inch, 11/64 inch, 3/16 inch, 13/64 inch, 7/32 inch
Perfect for the bench drill, hand drill, etc