Best Drill Shaft Foundation Design

• ✔ SIZE & REMINDING -- Masonry drill bits set includes 2* 6mm (1/4"), 1* 8mm (5/16"), 1* 10mm (3/8"), 1* 12mm (1/2"). Please cooling with water and control the speed when drilling, then dry the water or apply the oil to prevent rusting after used.
• ✔ UPGRADED TIP -- This Eaninno concrete drill bit set made of hard and durable Cemented Carbide (German Material, assembled in China) with the Thickened Tip, the hardness is higher than the ordinary drill bit.

• Ideal for permanently removing dandelions, thistles and other invasive weeds without multiple applications harsh, costly herbicide
• Long shaft eliminates sore knees from kneeling and back ache from bending and stooping
• Offset handle design offers improved ergonomics to reduce wrist strain and enhance grip
• Length: 39 inch. Viewing window integrated into the foot pedal make it easy to see the weed for optimum claw placement and clean, complete removal. Lightweight aluminum shaft provides easy maneuverability and lasting strength

• INNOVATIVE: Bosch’s unique, optimized flute design reduces bit stress when drilling, keep the bit running cooler, and for fast dust removal
• PRECISION: Featuring a harder diamond ground carbide tip that’s tougher, more resistant, and durable under heavy loads. This drill bit set allows for precise starts in materials such as tile and hard stone. The centric tip’s optimal hole geometry provides rounder holes