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Cutting tools, tool holding, work holding and supplies for CNC shops. Family-run since 2007.408-834-8656

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Looking for our previous website? It stays open at legacy.jemtoolsupply.com for now, while our business system still supports it.© 2026 Step Tools Unlimited Inc., dba JEM Tool Supply · jemtoolsupply.com

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Category · 4,942 parts online

Tool Holding

Holders, collets and the accessories that go with them.

Holders

Shown · CAT40-ER20H-0400ER collet chucks499

Shown · CAT40-SX16-0591SX & mini collet chucks150

Shown · CAT40-EM025-0250End mill adapters292

Shown · CAT40-SD025-160Shrink fit110

Shown · CAT40-SM100-0400Shell mill adapters159

Shown · CAT40-HC050-0254Hydraulic chucks513

Shown · CAT40-MC100-0335Milling chucks49

Shown · CAT40-TC2-097Tap holders18

Shown · BT40-DC13-110Drill chucks, TG/DA & other201

Collets

Shown · ER16-ISET-9PCSER collets1,524

Shown · Pioneer SX colletsSX & mini chuck collets158

Shown · Pioneer MC sleeveMilling chuck collets71

Shown · SCHUNK GZB-SHydraulic sleeves240

Shown · Pioneer TG colletTG & DA collets158

Shown · RA1U-0367Quick-change tap adapters47

Accessories

Retention knobs (pull studs)300

Shown · NUT-ERN32Collet nuts & coolant caps363

Locking fixturesOnline soon · call for a quote

Shown · WRENCH-SXW-16-SWrenches, screws & more90

Brands we carry in tool holding

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