Smaller keys usually have their full arc and their full measurement. (Large size Woodruff Keys are measured by the arc, not length of the key.). Per package of 25. SKU: 42649084 MFG: 71107 Shop more products by Imperial. Biggest repair hand tools retail store to buy Drill Chuck Keys & Holders SHARE Share on Facebook Tweet on Twitter Share on Google+ Pin on Pinterest Shipping not available to AK,AE,AA,AE,AE,AE,AP,GU,HI,PR,VI Free shipping over $35 Sold out $0.57 Quantity Sold Out Sold out Request a Bulk Quote Thank you for your quote request. We will be in touch. DETAILS Description DESCRIPTION Highlights: Length: 3/4 Thickness: 1/18 Key Number: 7 Smaller keys usually have their full arc and their full measurement. (Large size Woodruff Keys are measured by the arc, not length of the key.) Per package of 25 FEATURES MFR: 71107 SKU: 42649084 Brand: Imperial