Step Drills

1/4 ~ 1-3/8" HSS Step Drill DR70005

HSS Split point Progressive ("step") drills are designed to create clean, accurate, burr free holes in thin metal (up to 1/8") Unique spiral flute design (No. 1, 2, 3) gives better hole accuracy and surface finish Clarkson Osborn Catalog

3/16 ~ 7/8" HSS Step Drill DR70004

HSS Split point Progressive ("step") drills are designed to create clean, accurate, burr free holes in thin metal (up to 1/8") Unique spiral flute design (No. 1, 2, 3) gives better hole accuracy and surface finish Clarkson Osborn Catalog

1/4 ~ 3/4" HSS Step Drill DR70003

HSS Split point Progressive ("step") drills are designed to create clean, accurate, burr free holes in thin metal (up to 1/8") Unique spiral flute design (No. 1, 2, 3) gives better hole accuracy and surface finish Clarkson Osborn Catalog

3/16 ~ 1/2" HSS Step Drill DR70002

HSS Split point Progressive ("step") drills are designed to create clean, accurate, burr free holes in thin metal (up to 1/8") Unique spiral flute design (No. 1, 2, 3) gives better hole accuracy and surface finish Clarkson Osborn Catalog

1/8 ~ 1/2" HSS Step Drill DR70001

HSS Split point Progressive ("step") drills are designed to create clean, accurate, burr free holes in thin metal (up to 1/8") Unique spiral flute design (No. 1, 2, 3) gives better hole accuracy and surface finish Clarkson Osborn Catalog

UNIBIT® 5 - 35mm High Speed Steel Step Drill Bit 11105ZR

Irwin Unibit® step drill bits are ideal for drilling holes in just about any type of thin material.General purpose high speed steel Unibit® step drill bits are perfect for use in mild steel, copper, brass, aluminum, plexiglass, wood, and laminate.Most...

3 Pc. High Speed Steel Step Drill Bit Set 10502ZR

Irwin tools 10502zr Unibit® sheet metal step drill bit set is a selection of the most popular Unibit® step drill bits in the low diameter range (below 7/8").Ideal for drilling true round holes with precise control in a variety of materials like sheet...

UNIBIT® 1-1/8" #13 High Speed Steel Self-Starting Step Drill Bit 10313ZR

This Irwin Unibit® #13 high-speed steel fractional self-starting step drill bit features a single-flute cutting edge for greater control through each of its 2 steps.The hex shank helps prevent slipping in a drill chuck.Use this reliable drill bit to...

UNIBIT® 3/8" #12 High Speed Steel Self-Starting Step Drill Bit 10312ZR

Engineered with a high-speed steel speedpoint tip for fast starts, the Unibit® #12 3/8"Hss fractional step drill bit makes true round holes every time.It's ideal for general use on materials such as mild steel, copper, brass, aluminum, plastic, wood, and...

UNIBIT® 7/8" #11 High Speed Steel Self-Starting Step Drill Bit 10311ZR

Irwin Unibit® step drill bits are ideal for drilling holes in just about any type of thin material.General purpose high speed steel Unibit® step drill bits are perfect for use in mild steel, copper, brass, aluminum, plexiglass, wood, and laminate.Most...

UNIBIT® 1/2" #10 High Speed Steel Self-Starting Step Drill Bit 10310

This Irwin Unibit® #10 high-speed steel fractional self-starting step drill bit features a single-flute cutting edge for greater control through each of its 2 steps.The hex shank helps prevent slipping in a drill chuck.Use this reliable drill bit to...

UNIBIT® 7/8 - 1-1/8" #9 High Speed Steel Step Drill Bit 10239

This Irwin Unibit® #9 high-speed steel fractional self-starting step drill bit features a single-flute cutting edge for greater control through each of its 2 steps.The sharp speedpoint tip penetrates fast and helps prevent walking, while the hex shank...