The stanley fat max thru tang bevel edge chisels have an ergonomic handle design incorporating a shatterproof polymer handle the ergonomic soft grip longer handle is useful for maximum control feels good in the hand and is comfortable in all applications the friction welded bolster also gives strength and durability the steel striking cap can be struck with a steel hammer for increased cutting force and the body resists most solvents the iso standard blade is made from high quality ball bearing