

Milwaukee 3-Piece Cobalt Step Drill Bit Set 48-89-9291
STAINLESS STEEL DOMINANCE
Stop burning through bits and wasting man-hours on hardened alloys. The Milwaukee 48-89-9291 Cobalt Step Drill Bit Set is engineered for the high-torque, high-heat reality of drilling 14-gauge stainless steel. While standard bits dull instantly against non-ferrous and hardened metals, these cobalt-infused bits deliver 15X the life of the competition. Featuring a specialized dual-flute geometry and the Rapid Strike™ tip, these bits eliminate walking and optimize chip evacuation to prevent the thermal runaway that kills tool life on the jobsite.
- / RAPID STRIKE™ TIP: Provides 2X faster starts in stainless and prevents bit walking on smooth surfaces.
- / COBALT PERFORMANCE: Engineered to deliver up to 1000 holes in mild steel with superior heat resistance.
- / ELONGATED DUAL-FLUTE: Enhanced heat management and smaller step increments for the smoothest drilling experience in the industry.
- / OPTIMIZED FOR CORDLESS: Specifically designed to maximize hole count per charge when used on low speed for stainless and high speed for mild steel.
TECHNICAL SPECIFICATIONS
Maximum Material Thickness: 14 Gauge
Tip Type: Rapid Strike™
Flute Design: Elongated Dual-Flute
Compatibility: 1/4" and 1/2" Drills
Application: Stainless Steel, Mild Steel, Aluminum
Country of Origin: USA with Global Materials
WHAT'S IN THE BOX
- / (1) #1 Cobalt Step Drill Bit (1/8" - 1/2")
- / (1) #2 Cobalt Step Drill Bit (3/16" - 1/2")
- / (1) #4 Cobalt Step Drill Bit (3/16" - 7/8")
- / (1) Protective Storage Case
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
STAINLESS STEEL DOMINANCE
Stop burning through bits and wasting man-hours on hardened alloys. The Milwaukee 48-89-9291 Cobalt Step Drill Bit Set is engineered for the high-torque, high-heat reality of drilling 14-gauge stainless steel. While standard bits dull instantly against non-ferrous and hardened metals, these cobalt-infused bits deliver 15X the life of the competition. Featuring a specialized dual-flute geometry and the Rapid Strike™ tip, these bits eliminate walking and optimize chip evacuation to prevent the thermal runaway that kills tool life on the jobsite.
- / RAPID STRIKE™ TIP: Provides 2X faster starts in stainless and prevents bit walking on smooth surfaces.
- / COBALT PERFORMANCE: Engineered to deliver up to 1000 holes in mild steel with superior heat resistance.
- / ELONGATED DUAL-FLUTE: Enhanced heat management and smaller step increments for the smoothest drilling experience in the industry.
- / OPTIMIZED FOR CORDLESS: Specifically designed to maximize hole count per charge when used on low speed for stainless and high speed for mild steel.
TECHNICAL SPECIFICATIONS
Maximum Material Thickness: 14 Gauge
Tip Type: Rapid Strike™
Flute Design: Elongated Dual-Flute
Compatibility: 1/4" and 1/2" Drills
Application: Stainless Steel, Mild Steel, Aluminum
Country of Origin: USA with Global Materials
WHAT'S IN THE BOX
- / (1) #1 Cobalt Step Drill Bit (1/8" - 1/2")
- / (1) #2 Cobalt Step Drill Bit (3/16" - 1/2")
- / (1) #4 Cobalt Step Drill Bit (3/16" - 7/8")
- / (1) Protective Storage Case






















