Irwin 10239CB 9 Cobalt 2 Hole Sizes (7/8 inches and 1-1/8 inches) for 1/2 inches

Product Description

The IRWIN 10239CB is a cobalt step drill bit with sizes 7/8 in-1 1/8 in and 2 steps, ideal for drilling holes in thin materials. General purpose high speed steel step drill bits are perfect for use in mild steel, copper, brass, aluminum, plexiglass, wood, and laminate. The single flute cutting edge drills multiple sizes of true, round holes with precise step control.

• 6x longer life
• Laser marked sizes
• Engineered with m35 cobalt steel for maximum life when drilling in tough steel

Product Highlights

The Irwin step drill bit creates round holes and can be used to enlarge and debur existing holes. Suitable for drilling thin materials up to 1/8" thick.

Product Information

Standard Information

• Brand: IRWIN
• Manufacturer Part Number: 10239CB
• Country of Origin: US

Technical Specifications

• Applicable Materials: Steel and Stainless Steel
• Applications: General Applications
• Cutting Diam [Max]: 1 1/8 in
• Cutting Diam [Min]: 7/8 in
• Cutting Edge Material: M35 Cobalt HSS
• Height [Nom]: 1 in
• Length [Nom]: 7.25 in
• Material Thickness [Max]: 1/8 in
• Measurement Type: Fractional
• No. of Steps: 2
• Type: Step Drill Bit
• Width [Nom]: 3.25 in
• Drill Diameter Measurement System: Imperial
• Minimum Hole Diameter: 7/8 in
• Maximum Hole Diameter: 1-1/8 in
• Overall Length: 2-7/8 in
• Number of Steps: 2
• Number of Hole Sizes: 2
• Number of Flutes: 1
• Flute Type: Radial Concave
• Shank Size: 3/8 in
• Shank Type: Straight with Three Flats
• Point Type: SpeedPoint
• Material: Cobalt High Speed Steel
• Finish: Uncoated
• Number of Items in Set: 1
• Brand: IRWIN
• Model: 10239CB
• Package Quantity: 1
• Application: Drilling
• Suitable For: Drill
• Bit Diameter: 7/8" - 1-1/8"
• Bit Material: High Speed Steel
• Bit Type: Step
• California Proposition 65 Warning Required: No
• Drilling Depth (in): 3
• Tool Material: Cobalt
• Number Of Flats: 3
• Tool Performance: General Purpose
• Minimum Hole Diameter (Inch): 7/8
• Maximum Hole Diameter (Inch): 1-1/8
• Shank Diameter (Inch): 1/2
• Coating/Finish: Bright/Uncoated
• Series: Unibit
• Finish/Coating: Black Oxide
• Drill Bit Point Type: Speed Point
• Measurement System: Fractional Inch
• Drill Bit Sizes Included: 7/8 in; 1-1/8 in
• Size Decimal Equivalent: 0.8750; 1.1250
• Drill Bit Size - Minimum: 7/8 in
• Drill Bit Size - Maximum: 1-1/8 in
• Number of Sizes: 2
• Cutting Direction: Right Hand
• Step Thickness: 5/32 in
• Step Increments: 1/4 in
• Primary Material Application: Steel; Stainless Steel; Aluminum; Brass; Copper; Hardened Steel; Plastic; Wood