"""TITMAN EDGE PROFESSIONAL POCKET HOLE JIG: Adjustable height for material from 12.7mm to 38mm. Ideal for all your woodworking projects; Furniture, framework, shelving etc.""" """FAST & SIMPLE: Pre - Marked drill shaft and turret making it ideal for novices, hobbyists, and professionals alike, making all your joints quick & accurate to prepare and assemble.""" HEAVY DUTY: All metal Construction with four full hardened drilling columns to optimise screw placement, and has high efficiency dust extraction port. QUICK ACTION: Etched base for fast setting of drill collar along with pre marked drill shaft for double checking. Etched turret for setting depth for differing screw lengths. 7 pre-set pocket positions from15 to 50mm. CONTENTS: Professional 4 Port Pocket Hole Jig with quick release clamp and etched base & turret. 150mm Robertson square drive bit, HSS stepped drill with hex shank and depth set collar and key. 50 assorted screws & dust extraction port, Manufacturer: Titman Edge