Up for sale is a complete 5C workholding milling and grinding setup, featuring a precision 5C Collet Block Chuck Set paired with an assortment of 19 standard 5C collets (6 boxed and 13 loose). 

This package allows machinists to quickly clamp round stock in a standard milling machine vise, surface grinder magnetic chuck, or drill press table to index square (90°), hexagonal (60°/120°), or parallel features with ease. 

What is Included in This Lot:

5C Collet Block Chuck Set (in original carton & polyfoam tray): 

1x Precision Ground Square 5C Collet Block 

1x Precision Ground Hexagonal 5C Collet Block 

1x Quick-Acting Cam / Lever-Operated Closer 

2x Knurled Spanner / Nut Closers 

Ground square and parallel to ±0.0005" 

Boxed 5C Collets (6 Pieces): 

Manhattan Supply Co. (MSC): 39/64", 47/64", 61/64" 

Enco: 13/16" 

Precision Instruments / PII (Korea): 1/4" 

Generic New Old Stock: 3/32" 

Loose 5C Collets (13 Pieces): 

13 assorted fractional round shop collets (all standard 5C taper) 

Condition & Quality Inspection

Pre-owned machine shop surplus condition. The collet block chuck set is in solid condition with smooth internal closing threads and clean reference flats. Collets show normal shop handling marks, light patina, and surface oil typical of active toolroom storage, with intact drawbar threads and mostly clean bore faces. 

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About Our Inventory: We specialize in buying manufacturing industrial equipment and supplies from overstock sales or company liquidations. We test everything we can and inspect them so that you are able to pay less for good working items that make you productive.

Listing Metadata & Search Keywords

5C collet block set, 5C square block, 5C hex block, collet closer, 5C collet lot, MSC 5C collet, Enco 5C, Bridgeport mill workholding, surface grinder chuck block, machinist indexer, lathe collets lot.