VEVOR CAT40 Collet Chuck and Tool Holder Set, CAT40-ER16 100 mm / CAT4

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What to know before you buy

Core information, use cases, and key selling points for this item.

【COMPLETE CAT40 TOOLING OPTIONS】- Choose the set that matches your spindle: 4 or 8-pack ER16 collet chucks, a 5-piece ER32 collet set, a single keyless drill chuck with wrench and pull stud, or a 35-piece holder and collet kit for a full CNC tool room.
【HARDENED ALLOY STEEL BODIES】- 40Cr / 40CrMnTi alloy steel and spring steel bodies are hardened, precision ground and polished, so they resist rust and keep their accuracy through long production runs.
【HIGH ACCURACY AND CONCENTRICITY】- Hardened and ground collet chucks hold accuracy in tenth (0.0001 in / 0.003 mm up to 0.0002 in / 0.005 mm) with TIR down to 0.0002 in / 5 μm, keeping runout low for precise milling, drilling and boring.
【BALANCED FOR HIGH SPEED】- V-flange CAT40 bodies are dynamically balanced to G2.5 for spindle speeds from 8,000 to 25,000 RPM, which keeps vibration low in high-speed machining.
【EASY ON TOOL CHANGERS】- Fully ground flange and V-groove slide easily into automatic tool changers, and the polished shanks seat cleanly in CAT40 spindles for less spindle and changer maintenance.

Brand	VEVOR
Product Type	Hardware > Tool Accessories > Drill & Screwdriver Accessories > Drill Chucks > Keyless Chucks
Taper	CAT40 (every set)
Collet Series	ER16 or ER32 or mixed ER16 / ER32 set (per option)
Material	Hardened 40Cr / 40CrMnTi alloy steel and spring steel
Accuracy	Accuracy in tenth 0.0001-0.0002 in (0.003-0.005 mm); TIR from 0.0002 in / 5 μm on collet holders
Dynamic Balance	G2.5 (per option)
Max Spindle Speed	8,000-25,000 RPM (per option)
Gage Length	2.75 in / 70 mm or 4 in / 100 mm (per option)
Draw Bar Thread	5/8 in - 11
Package Content	Per option - 4 Pcs: 4 x CAT40-ER16 collet chucks (100 mm gage length); 8 Pcs: 8 x CAT40-ER16 collet chucks (70 mm gage length); 5 Pcs: 5 x CAT40-ER32 collets; 1 Pc: 1 x CAT40 keyless drill chuck (1/2 in) with a wrench and a pull stud; 35 Pcs: CAT40-SLN / ER16 / ER32 / APU / FMB holders, ER16 and ER32 collets, 10 pull studs, 3 wrenches and a labeled storage box
Available Options	Chuck Type: CAT40 Keyless Drill Chuck, CAT40-ER16 100 mm, CAT40-ER16 70 mm, CAT40-ER16/ER32 Set, CAT40-ER32; Number of Pieces: 1 Pc, 35 Pcs, 4 Pcs, 5 Pcs, 8 Pcs