16cm / 6.3 inch. Mm(1/8) 3 / 5 mm(3/16) / 6 mm(1/4) / 8 mm(5/16) / 10 mm(3/8) / 11 mm(7/16). 13 mm(1/2) / mm(9/14) 14 / 16 mm (5/8) 18 mm(11/14) / 19 mm(3/4). This is a "brand new" precision collet chuck holder for demanding hobbyists and professionals. Available in the BT ER extension rod handle, can be used for clamping drill.Milling cutter, straight shank tool. Collet must be assembled into the clamping nut before inserting into the chuck. Ease of operation and high quality work results. 1 Before using this tool, please measurement tool deflection, tool deflection accuracy exceeds 0.01 MM, please correct before cutting. The tool extends the length of the chuck as short as possible, the tool extends the amount of time longer if extended, please cut their own speed, feed rate or cutting the amount. If the cutting of abnormal vibration or sound, cut spindle speed and depth of cut to improve the situation so far. 1pc x R8-ER32 Collet Chuck Holder. 11pcs x ER32 Spring Collet Set. Please allow a bit error due to manual measurement. The color may have different as the difference display, pls understand. The item "11pcs ER32 Spring Collets Set With R8-ER32 Collet Chuck Holder For CNC Milling L" is in sale since Thursday, April 5, 2018. This item is in the category "Business, Office & Industrial\Industrial Tools\Other Industrial Tools". The seller is "magnetic-a" and is located in China. This item can be shipped worldwide.