IRWIN® Speedhammer Plus Drill Bit 18.0 x 600mm Biodegrable 30cm gusset at ankles with

30cm gusset at ankles with hook and loop closure

Poron XRD internal M-Guard for additional metatarsal protection

High-quality wool for superior warmth and comfort

63% Polyester | 34% Cotton | 3% Elastane

this boot will not let you down

IRWIN® Speedhammer Plus Drill Bit 18.0 x 600mm Biodegrable 30cm gusset at ankles withThe IRWIN SDS Speedhammer Plus Drill Bits are designed for SDS drilling. They drill exceptionally fast into brick, block, masonry, concrete and granite. The patented, unique single flute design ensures efficient, speedy removal of dust and lower vibrations and 28% greater capacity meaning more efficient waste removal. They have a patented extra short drill bit head which means the head takes 80% of the workload, ensuring higher durability and speed.