# Milwaukee® 48-20-3970 MX4™ 4-Cutter Rotary Hammer Drill Bit, 1-1/4 in Drill Bit

**Brand:** [MILWAUKEE](https://maxsupplyco.com/brands/MILWAUKEE)
**SKU:** 48-20-3970-11961
**MPN:** 48-20-3970
**Price:** $79.97 · in stock
**URL:** https://maxsupplyco.com/product/milwaukee-48-20-3970

## Features

- Breaker points for up to 20% faster drilling speeds
- Rebar guards for increased duraguard in hard aggregate and rebar
- Variable flutes for up to 15% more holes per battery charge
- Reinforced flutes to avoid bit breakage
- Wide flute entrance for increased faster dust removal
- Wear mark indicators to indicate end of life
- Centering tip of exact spot drilling
- Highest quality carbide maximizes material pulverization
- The optimized flutes provide fastest debris extraction speeding up drill rates
- Feature a 4-cutter 4 x 90° tip geometry to avoid lock up in rebar and patented rebar chamfers for increased durability

## Specifications

| Spec | Value |
|---|---|
| UPC | 045242102273 |
| Brands | MILWAUKEE |
| Width (in) | 1.75 |
| Height (in) | 18.3 |
| Length (in) | 1.15 |
| Manufacturer | Milwaukee Tool |
| Package Quantity | 1/Each |
| Manufacturer Part Number | 48-20-3970 |

## Description

Milwaukee® rotary hammer drill bit, 4-cutter, 1-1/4 in drill bit, 15 in OAL, 10 in cutting depth, 10 in flute length, 45/64 in shank, SDS Max® shank, centering point, right hand cutting direction, carbide cutting edge, high carbon steel, uncoated, silver, applicable materials: block, brick, concrete and reinforced concrete.

Features

- Breaker points for up to 20% faster drilling speeds

- Rebar guards for increased duraguard in hard aggregate and rebar

- Variable flutes for up to 15% more holes per battery charge

- Reinforced flutes to avoid bit breakage

- Wide flute entrance for increased faster dust removal

- Wear mark indicators to indicate end of life

- Centering tip of exact spot drilling

- Highest quality carbide maximizes material pulverization

- The optimized flutes provide fastest debris extraction speeding up drill rates

- Feature a 4-cutter 4 x 90° tip geometry to avoid lock up in rebar and patented rebar chamfers for increased durability