Hornady New Dimension Series II Three Die Set for 10mm Auto and S&W .40 546533 is a well-crafted three piece set of reloading dies that will greatly improve the efficiency of your hand loading operation. A bevy of features make using New Dimension die a hassle-free pleasure, not least among them the trademarked Hornady Zip Spindle design, which features light threads all up and down the spindle collet to eliminate slippage while tightening the spindle lock. Another key feature of this Hornady gunsmith and reloading set is its polished elliptical expander, which expands bullet casings without an extra die and makes for a smooth case neck release. A sliding adjustment sleeve and built-in crimper round out the major improvements on the Hornady New Dimension II 10mm Auto and S&W .40 Handgun Reloading Dies, but a slew of smaller features add their two cents as well. Wrench flats, a compression washer, a durable steel decap pin, and a removable retainer ring add small but important advantages to this gunsmith and reloading kit. For a dependable, durable, efficient set of reloading die for your .40 Smith & Wesson or your 10mm automatic ammunition, load the Hornady New Dimension II Three-Die Set for .40 S&W and 10mm Auto into your press.