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HAMMERBORING DRILLS“SHORT THROW” CUSTOM HAMMER BORING DRILL BITSProfessional High Speed Spiral drill bits for hammer boring. Since longer bits tend to flex and waiver,Pianotek’s custom short length allows for pin-point accuracy, and eliminates the need for pre-centering orbrad points. The sizes below represent the most common sizes for both grand and upright new and originalshanks. In most cases, boring .003” over the shank size will eliminate the need for reaming or shank reduction.Drill bits shown below actual size. Lengths vary from 2 1 ⁄4” to 2 1 ⁄2”. Available in 10 piece kit or individually.3/16”#HBD-1875 3/16” (.1875”) For original shanks onolder spinets and some consoles.#12#HBD-189 #12 (.189”) For new 3/16” shanks, olderspinets and some consoles.13/64”#HBD-203 13/64” (.203”) For original Steinway,Aeolian, and many others.#5#HBD-205 #5 (.205”) For original Steinway, Aeolian,and many others.#3#HBD-213 #3 (.213”) Perfect “in-between” size forboth grands and uprights.5.5mm#HBD-2165 5.5mm (.2165”) Perfect for original 7/32”upright and grand shanks that have been compressed.7/32”#HBD-2188 7/32” (.2188”) For most new and originalupright shanks. Snug fit for new grand shanks.5.6mm#HBD-220 5.6mm (.220”) Perfect for new Tokiwa andRenner grand shanks, plus many original brands.#2#HBD-221 #2 (.221”) Perfect for new Tokiwa andRenner grand shanks, original Baldwin, and others.5.7mm#HBD-10PK 10 piece kit includes all above sizes.#HBD-224 5.7mm (.224”) For larger shanks. Fits someKawai, Yamaha, Baldwin, and others. Also provides avery loose fit for new Tokiwa and Renner.Phone Orders: 1-800-347-3854 A-7