Big Gator Tools BGT V-4 Pack - 3 Portable V-DrillGuides (In Standard Imperial Fractions (SAE) Sizes) + 1 MINI V-DrillGuide (In SAE and Number Sizes) - Consists of the following part #s: STD 500NP + STD1000DGNP + STD2000DGNP + SDGMINI ---- This set is like a portable drill press for precision drill bit alignment! --- The precisely milled V-groove along the bottom of the drill guide allows for perpendicular alignment with all drill sizes on round parts like pipes, dowels, and outside corners. --- Bottom surface is precision ground to assure stability and accurate perpendicular alignment on flat surfaces. --- The flat side allow 90° drilling into flat surfaces-just clamp and drill. --- American Engineered & Made in the USA to be the most universal Portable V-Drill Guides ever! -------- SPECIFICATIONS: STD500NP V-DrillGuide w/9 Standard Imperial Fractions (SAE). Hole Sizes: 6, 8, 10, 1-4, 5/16, 3/8, 7/16, 1/2, 5/8" ------ STD1000DGNP V-DrillGuide is sized for Standard Imperial Fractions (SAE) drill bit sizes of 3/8" drill index-everything from 1/8" to 3/8" in 1/64" increments. w/17 Standard Imperial Fractions (SAE). Hole Sizes: 1/8, 9/64, 5/32, 11/64, 3/14, 7/32, 15/64, 1/4, 17/64, 9/32, 19/64, 5/16, 21/64, 11/32, 23/64, 3/8". ------ STD2000DGNP V-DrillGuide w/9 Standard Imperial Fractions (SAE) Size: 13/8, 25/64, 13/32, 27/64, 7/16, 29/64, 15/32, 31/64, ½ ----- SDGMINI portable MINI V-DrillGuide w/21 holes: #10, 21, 25, 29, 30, 1/8", 33, 7/64", 36, 37, 38, 40, 3/32", 43, 45, 47, 5/64, 50, 1/16", 53, 3/64". Covers all tap drill sizes for tap sizes: 10-32 down to 0-80, Aerospace drill sizes: #10, 21, 30 & 40. --------- NOTE: NOT TO BE USE WITH HAMMER DRILLS. ---- Only shipping one of each (3) V-Drill Guides "NO" other tools included. ------ WARNING: Always ensure that you and persons in the vicinity wear approved eye protection. ---- Never use on or near live electrical circuits. ---- All Manufacturer's Specifications are Subject to Change Without Notice.