Overview Product Description Double set screw with Allen wrench. Recommended for all 1/4'' round shank drill bits requiring extra reach. Follows 5/8'' and larger bits through hole. 1/4'' shank. Pouched. Only fits round shank Speedbor or Do it Best brand bits. Product Videos Custom Field Product Reviews Write a Review Write a Review × Irwin 88601 Speedbor Woodboring 12"" Bit Extension Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *
Quick view Details sku: 3041007 Irwin Tools 3041007 Speedbor Max 1" x 6" Tri-Flute Self-Feeding Spade Bit MSRP: Now: $3.01 Qty:15 Add to Cart Quick view Details sku: 1882784 Irwin Tools 1882784 SPEEDBOR Countersink Wood Drill Bit, Number-12 MSRP: Now: $4.86 Qty:155 Add to Cart Quick view Details sku: 88702 Irwin 88702 6" Extension Bit MSRP: Now: $1.31 Qty:6 Add to Cart ×
Quick view Details sku: 1882784 Irwin Tools 1882784 SPEEDBOR Countersink Wood Drill Bit, Number-12 MSRP: Now: $4.86 Qty:155 Add to Cart Quick view Details sku: 88702 Irwin 88702 6" Extension Bit MSRP: Now: $1.31 Qty:6 Add to Cart ×