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Drill Blocks/Challenge/6" Long x 2" Wide x 1/8" Thick/For Jumbo Drill/Oblong/Plastic/Each Drill Blocks/Challenge/1-1/2" Dia/ 3/4" TK/Per (1) Dozen Drill Blocks/Challenge Drills/2-1/2"Diameter x 3/4" TK/Per One Dozen
G31386 - Drill Blocks/Challenge/6" Long x 2" Wide x 1/8" Thick/For Jumbo Drill/Oblong/Plastic/Each G24087 - Drill Blocks/Challenge/1-1/2" Dia/ 3/4" TK/Per (1) Dozen.
For models JO, JF, Century, etc.
G23141 - Drill Blocks/Challenge Drills/2-1/2"Diameter x 3/4" TK/Per One Dozen
Drill Blocks/Challenge/3" Dia/ 3/4" TK/Per One (1) Dozen Drill Blocks/Challenge/6" Long x 1-1/4" Wide x 3/8" Thick/Oblong/Wood/End Grain/Per Three (3) Dozen Drill Blocks/Challenge/6" Long x 1-1/4" Wide x 3/8" Thick/Wood/Long Grain/Also for Nygren Dahly/Per 3 Dozen
G24099 - Drill Blocks/Challenge/3" Dia/ 3/4" TK/Per One (1) Dozen.
For models EH3, EH3A, EH3C, etc.
G31382 - Drill Blocks/Challenge/6" Long x 1-1/4" Wide x 3/8" Thick/Oblong/Wood/End Grain/Per Three (3) Dozen For MS-5, MS-10A,etc. including for Nygren Daly 6" long x 3/8" TK
Drill Blocks/Challenge/6" Long x 1-1/4" Wide x 3/8" Thick/Wood/Long Grain/Also for Nygren Dahly/Per 3 Dozen
G24105 - Drill Blocks/Challenge/12" Long x 1-1/4" Wide x 3/8" Thick/Oblong/Wood/Long Grain/Per 3 Dozen Drill Blocks/Challenge/18" Long x 1-1/4" Wide x 3/8" Thick/Oblong/Wood/Long Grain/Per 3 Dozen Drill Blocks/Challenge/24" Long x 1-1/4" Wide x 3/8" Thick/Oblong/Wood/Long Grain/Per 3 Dozen
G24105 - Drill Blocks/Challenge/12" Long x 1-1/4" Wide x 3/8" Thick/Oblong/Wood/Long Grain/Per 3 Dozen G31384 - Drill Blocks/Challenge/18" Long x 1-1/4" Wide x 3/8" Thick/Oblong/Wood/Long Grain/Per 3 Dozen G31385 - Drill Blocks/Challenge/24" Long x 1-1/4" Wide x 3/8" Thick/Oblong/Wood/Long Grain/Per 3 Dozen