Edge of Arlington offers free shipping in the United States when you choose flat rate shipping.
Acrylic Drill Set Type 183 UB
All sizes over 1/4" have 1/4" shanks.
Super CHIPFREE™ point is precision ground at a 60° angle for gradual penetration to avoid cracking and chipping of the acrylic material. Special 0° rake angle on cutting edge eliminates "grabbing" when drill breaks through plastic, acrylic, or laminate surfaces.