Sperling Railway Services offers a variety of different tie drill bits to fulfill all tie drilling needs. Part #101281 is specially designed and manufactured for the QUADRILL.
Part # 101281
11/16" x 9-5/8" OAL Single Flute Bit for Wood Ties
Part # 101284
9/16" x 9-3/8" OAL Single Flute Bit For Wood Ties
Part # 101282
3/8" x 12" OAL Double Flute Bit for Composite Ties
Part # 101347
3/8" x 8" OAL Double Flute Bit for Composite Ties
Part # 101345
1/2" x 12" OAL Double Flute Bit for Composite Ties