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20 2019/06

What types of drills are there? What are the characteristics of different types of drill bits?

(Summary description)1,twistdrill Twistdrillsarethemostwidelyusedholemachiningtools.Itmainlyconsistsoftheworkingpartofthedrillbitandtheshank.Inordertoreducethefrictionbetweentheguidingpartandtheholewallduringdrilling,thehelixangleofthetwistdrillmainlyaffectsthesizeoftherakeangleonthecuttingedge.

20 2019/06

What are the functions of different types of taps?

(Summary description)1 Screw tip tap: The cutting part is ground with a chute to form a negative edge angle (see tool). The chips are discharged forward during cutting and are suitable for tapping through holes.

20 2019/06

How to use the drill bit when drilling iron plates?

(Summary description)1.Removethedrillbitfromthedrillchucksothatitismuchmoreconvenientwhengrinding,anditisalsothecorrectoperatingprocedure.Itisnotadvisabletogrindthedrillbitwithapistoldrill.