ATI443 SERIES, Microstops

  • For lower volume countersinking in maintenance and home-build environments.
  • Bronze bushing shaft support.
  • Heavy duty ball thrust bearing ensures depth repeatability.
  • Fail-safe design accomplished with integrated shoulder on shaft.
  • .0005″ depth adjustment.
  • 5/16″ shaft travel.
  • Righ-hand thread lock nut prevents jamming of adjustment mechanism.
  • Multiple skirt configuration options.
  • Multiple shaft configuration options.

Recognized throughout the industry as a leading producer of quality cutting tools, ATI Tools give the industry tools that are designed for high-rate production in the full range of metals used in aircraft manufacturing and maintenance.

The tools contained in this section are made of the finest tool steel and carbides. The cutters are carefully heat-treated, precision ground for correct cutting angles and proper clearance, then thoroughly checked to ensure accurate cutting without chatter. After final inspection, all tools are dipped in a protective plastic coating for shipment and storage.

A variety of microstop countersink units and accessories have been designed to present a versatile selection of tools for all working surfaces and areas.

PART # SKIRT DESCRIPTION SKIRT CAPACITY SHAFT THREAD SHAFT SHANK
ATI443A1 PHENOLIC INSERT 3/4″ 1/4-28 FEMALE 1/4″ ROUND
ATI443A2 PHENOLIC INSERT 3/4″ 1/4-28 FEMALE 3 CHUCK FLATS
ATI443A3 PHENOLIC INSERT 3/4″ 1/4-28 FEMALE QUICK CHANGE
ATI443B1 2-LEGGED 3/4″ 1/4-28 FEMALE 1/4″ ROUND
ATI443B2 2-LEGGED 3/4″ 1/4-28 FEMALE 3 CHUCK FLATS
ATI443B3 2-LEGGED 3/4″ 1/4-28 FEMALE QUICK CHANGE
ATI443C1 CLOSE 5/16″ 1/4-28 FEMALE 1/4″ ROUND
ATI443C2 CLOSE 5/16″ 1/4-28 FEMALE 3 CHUCK FLATS
ATI443C3 CLOSE 5/16″ 1/4-28 FEMALE QUICK CHANGE
ATI443D1 BELL 1″ 1/4-28 FEMALE 1/4″ ROUND
ATI443D2 BELL 1″ 1/4-28 FEMALE 3 CHUCK FLATS
ATI443D3 BELL 1″ 1/4-28 FEMALE QUICK CHANGE
ATI443E1 STRAIGHT CUTAWAY 3/4″ 1/4-28 FEMALE 1/4″ ROUND
ATI443E2 STRAIGHT CUTAWAY 3/4″ 1/4-28 FEMALE 3 CHUCK FLATS
ATI443E3 STRAIGHT CUTAWAY 3/4″ 1/4-28 FEMALE QUICK CHANGE
ATI443F1 FLANGED 3/4″ 1/4-28 FEMALE 1/4″ ROUND
ATI443F2 FLANGED 3/4″ 1/4-28 FEMALE 3 CHUCK FLATS
ATI443F3 FLANGED 3/4″ 1/4-28 FEMALE QUICK CHANGE
ATI443G1 FLANGED CUTAWAY 3/4″ 1/4-28 FEMALE 1/4″ ROUND
ATI443G2 FLANGED CUTAWAY 3/4″ 1/4-28 FEMALE 3 CHUCK FLATS
ATI443G3 FLANGED CUTAWAY 3/4″ 1/4-28 FEMALE QUICK CHANGE
ATI443H1 NYLON FLANGE INSERT 3/4″ 1/4-28 FEMALE 1/4″ ROUND
ATI443H2 NYLON FLANGE INSERT 3/4″ 1/4-28 FEMALE 3 CHUCK FLATS
ATI443H3 NYLON FLANGE INSERT 3/4″ 1/4-28 FEMALE QUICK CHANGE
ATI443N1 NYLON INSERT 3/4″ 1/4-28 FEMALE 1/4″ ROUND
ATI443N2 NYLON INSERT 3/4″ 1/4-28 FEMALE 3 CHUCK FLATS
ATI443N3 NYLON INSERT 3/4″ 1/4-28 FEMALE QUICK CHANGE
ATI443S1 STRAIGHT 3/4″ 1/4-28 FEMALE 1/4″ ROUND
ATI443S2 STRAIGHT 3/4″ 1/4-28 FEMALE 3 CHUCK FLATS
ATI443S3 STRAIGHT 3/4″ 1/4-28 FEMALE QUICK CHANGE
ATI443W1 FLANGED BELL 1″ 1/4-28 FEMALE 1/4″ ROUND
ATI443W2 FLANGED BELL 1″ 1/4-28 FEMALE 3 CHUCK FLATS
ATI443W3 FLANGED BELL 1″ 1/4-28 FEMALE QUICK CHANGE

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