TopHat® Break-Off Insert for carbon and aluminum files.
Weight: 40 grain, reducible to 30 grain or 20 grain.
Material: aluminum (AL) The material aluminum is used for inserts because of its very low weight.
TopHat®Insert Technology: The TopHat®Insert is particularly long to transmit the force of the impact as well as possible to the shaft and thus to protect it. This leads to noticeably less shaft breakage.