Nicholson USA made XF SWISS PATTERN 8" ROUND FILE 0-CUT #40693 Boring Bar and features a black oxide-finish

and features a black oxide-finish and is precision made for snug fit between the driver and scope screw that minimizes the potential for damage to the screw head when torque is applied

heat treated to 60RC and precision ground for accuracy

D1-8 Direct Mount

in a nice fitted case

these blades are capable of cutting even the most difficult metals with great accuracy and combine consistent high performance with long life

Nicholson USA made XF SWISS PATTERN 8" ROUND FILE 0-CUT #40693 Boring Bar and features a black oxide-finishNicholson XF SERIES ( the XF series was the Nicholson premium line of Swiss pattern files) 8" ROUND FILE, No. 40693. This file has a 0 cut.