Save 20% on any of our collets!
WW Collets for your lathe
Collets provide a quick, easy method of mounting cylindrical parts or bar stock in the lathe with a great deal of centering accuracy. Each collet is actually a small, precision 3-jaw chuck that fits into a special tapered adapter in the headstock. A drawbar that passes through the headstock and threads into the back side of the collet is used to draw the collet up into the tapered adapter. The adapter causes the jaws of the collet to close down, gripping the part to be machined. Typically, collets provide a very accurate part mounting system, but each size collet can accommodate only a small range of diameters of approximately ±.001″ (.02mm).
WW collets differ from milling collets (P/N 3060) in that they have a hole all the way through the collet and drawbar. The maximum diameter stock that can pass entirely through the collet is 3/16″ or 4.5mm, although collets are available up to 5/16 and 8.0 mm. The WW collets that are larger than the through-hole diameter are sometimes referred to as “pot” chucks.
Sherline collets are numbered logically:
- Inch collets all begin with part number 1160 followed by two digits which indicate the size in 64ths of an inch. For example, a 13/64″ collet would be P/N 116013 and a 1/4″ collet (16/64″) would be P/N 116016.
- Metric collets all begin with part number 1178 followed by two digits indicating the size in 0.1 mm increments. For example, P/N 117813 is 1.3 mm.
These collets are not hardened. They are manufactured by Sherline and are built to standard WW specifications; however, we have come across collets that are called “WW” but will not fit our drawbar and adapter. Sherline collets have a shank diameter of .312-.313 and a .275-40 thread. Be sure to check WW collets made by other manufacturers to be sure they fit our adapter before you purchase them. Sherline manufactures a slightly larger .315″ adapter and drawbar set (P/N 1163) that will accommodate some of these other brands of 8 mm collets.
Sherline WW collets are available in inch sizes by 64ths of an inch from 1/64″ to 5/16″. Metric sizes go from .3 mm to 8.0 mm by .1 mm increments. See the drop-down menu below for sizes and part numbers. Special sizes up to .320″ can be special ordered with approximately a 3-week wait. A blank collet is also available as is a collet with a 1″ blank end. Larger collet “pot” chucks are listed separately.
WW Collet Sets
Product #: 1160/1178
The Sherline WW collet set includes a WW style collet taper adapter, a drawbar, and a set of five WW collets with .275-40 thread, sizes 1/16", 1/8", 3/16", 1/4", and 5/16". A metric (P/N 1178) WW collet set is also available and includes sizes 2.0mm, 3.0mm, 4.0mm, 5.0mm, and 6.0mm. These collets are manufactured by Sherline and are built to standard WW specifications; however, we have come across collets that are called WW and will not fit our drawbar and adapter. Be sure to check WW collets made by other manufacturers to be sure they fit our adapter before you purchase them. Sherline manufactures a slightly larger .315" adapter and drawbar set (P/N 1163) that will accommodate some of these other brands.
Product #: 1162/1179
These sets contain a complete selection of 17 (14 for the metric set) Sherline WW collets, including a blank, 3/4" and 1" pot chucks with dowel pin, an adapter, drawbar and a knockout bar. It is packaged in a high quality wood box constructed with finger joint corners that has a brass latch and hinges. A machined wood insert locates each part, plus a drawing in the lid reminds you where each part goes to keep things organized. Extra holes are provided should you want to add additional collets to suit your particular needs. This is a handsome and useful package for the serious miniature machinist.
Each set contains: WW collet adapter, drawbar, knockout bar, blank WW collet, 3/4" collet pot chuck, 1" collet pot chuck and 1/8: clamping pin.
The inch set includes the following 17 collet sizes: 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64", 1/4", 17/64", 9/32", 19/64", 5/16".
The metric set includes the following 14 collet sizes: 1.5 mm, 2.0 mm, 2.5 mm, 3.0 mm, 3.5 mm, 4.0 mm, 4.5 mm, 5.0 mm, 5.5 mm, 6.0 mm, 6.5 mm, 7.0 mm, 7.5 mm, 8.0 mm.
Product #: 1180
The Sherline metric WW collet set contains 77 collets sized from 0.3 mm to 8.0 mm by 0.1 mm increments plus a blank collet that can be made into any size collet by the user. It comes in a finely finished oak box with 96 holes, leaving room for other collets should you have extras or inch sizes to store.
Sherline milling collets are designed to be used with the Morse #1 internal spindle taper that is standard on both the Sherline lathe and vertical mill. Because of the shallow angle of the Morse #1 taper, when the drawbolt is tightened, greater clamping force can be applied when compared to the clamping pressure of WW collets. Therefore, we recommend the use of these milling collets for holding miniature size end mills (3/16" or 1/4" shank), #1 and smaller center drills or Dremel® bits (1/8" shank), and assorted other cutters.
Cutting tools held by these collets must have a shank size within .001" of the manufactured size. Because of the shallow taper angle, these collets will not loosen from the spindle without backing the drawbolt off a couple of revolutions and tapping the drawbolt to free the collet.
Mill Collet Sets
Product #: 3060/3090
The Sherline milling collet set P/N 3060 consists of a 1/8", 3/16" and 1/4" mill collets, a drawbolt and a thrust washer. (Metric set P/N 3090) includes 3mm, 4mm and 6mm sizes.)
*Dealers are not eligible for the monthly special pricing
Download collet instructions Instructions