Step Cone Drill 3/16in to 7/8in HSS MPN:UNIBIT 4

The shanks on these step drill bits have three flats that help prevent the bits from slipping in the drill chuck during drilling. These cone-shaped bits have steps of increasing diameter marked along their cutting head. As each bit is pushed into a piece of sheet metal or other thin material, each step on the bit widens the hole. The bits also have a self-starting split point that prevents the bits from moving, or walking, when starting to drill, which eliminates the need for using a center drill to create a starter hole before drilling.

Technical Specifications

• Drill Bit Grouping Set
• Item Step Drill Bit
• Drill Bit Material High Speed Steel
• Size Range 3/16 in to 7/8 in
• Drill Bit Sizes Included 3/16 in, 1/4 in, 5/16 in, 3/8 in, 7/16 in, 1/2 in, 9/16 in, 5/8 in, 11/16 in, 3/4 in, 13/16 in, 7/8 in
• Shank Size 3/8 in
• Number of Hole Sizes 12
• Step Thickness 1/16 in
• Drill Bit Finish Uncoated
• Number of Flutes 1
• Shank Shape Hex
• Overall Length 3 1/4 in
• Impact Rated No

Manufacturer Details

• Manufacturer: Irwin
• Condensed Mfg Number: UNIBIT4
• MPN: UNIBIT 4

Label Details

• Hazardous Material: N
• Green Material Flag: N
• Country of Origin: US
• CA Prop 65 Wht Label: N

Classification Details

• Harmonization Code: 8207506000
• GDS Category Name: Step Drill Bits
• GDS Family Name: Drilling Accessories
• GDS Segment Name: Power Tools
• UNSPSC: 27112801
• UNSPSC Class ID: 28
• UNSPSC Commodity Name: Tool attachments and accessories
• UNSPSC Commodity ID: 01
• UNSPSC Commodity Name: Drill bits
• UNSPSC Family ID: 11
• UNSPSC Family Name: Hand tools
• UNSPSC Segment ID: 27
• UNSPSC Segment Name: Tools and General Machinery

Shipping Details

• Not For Sale In: HI AK PR