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: 42649040 MFG: 71103 Shop more products by Imperial. Best online store to shop hardware hand tools. Save big with Life and Home discount coupons 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 $0.53 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: 5/8 Thickness: 1/8 Key Number: 4 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: 71103 SKU: 42649040 Brand: Imperial